Trigonometry pyq class 10

2016 Very Short Answer Type Questions [1 Mark] Question 1. If Figure, AB is a 6 m high pole and CD is a ladder inclined at an angle of 60° to the horizontal and reaches up to a point D of pole. If AD = 2.54 m, find the length of the ladder.(use √3=1.73) Solution: Question 2. A ladder, leaning against a wall, makes an angle of 60° with the horizontal. If the foot of the ladder is 2.5 m away from the wall, find the length of the ladder. Solution: Question 3. An observer, 1.7 m tall, is 20√3 m away from a tower. The angle of elevation from the eye of observer to the top of tower is 30°. Find the height of tower. Solution: Short Answer Type Questions II [3 Marks] Question 4. The angles of depression of the top and bottom of a 50 m high building from the top of a tower are 45° and 60° respectively. Find the height of the tower and the horizontal distance between the tower and the building, Solution: Question 5. A man standing on the deck of a ship, which is 10 m above water level, observes the angle of elevation of the top of a hill as 60° and the angle of depression of the base of hill as 30°. Find the distance of the hill from the ship and the height of the hill. Solution: Question 6. Two men on either side of a 75 m high building and in line with base of building observe the angles of elevation of the top of the building as 30° and 60°. Find the distance between the two men Solution: Question 7. A 7 m long flagstaff is fixed on the top of a tower standing on the horizontal p...

Expert Teachers at HSSLive.Guru has created KBPE Kerala SSLC Maths Previous Year Model Question Papers with Answers for Class 10 Kerala State Board Syllabus 2020-2021 in English Medium and Malayalam Medium Pdf free download are Part of Here we have provided SCERT Kerala SSLC Maths Model Question Papers 2020-21 with Answers for Class 10th Std. Students can view or download the Kerala State Board SSLC Maths Previous Year Question Papers and Answers Malayalam English Medium for their upcoming Kerala SSLC board examinations. Students can also read Board Kerala Board Textbook SCERT, Kerala Class SSLC Class 10 Subject SSLC Maths Chapter Previous Year Question Papers, Model Papers, Sample Papers Year of Examination 2021, 2020, 2019, 2018 Category Kerala Syllabus Question Papers Kerala SSLC Maths Previous Year Model Question Papers with Answers These SSLC Maths Model Question Papers 2021 Kerala with Answers Pdf are designed according to the latest exam pattern, so it will help students to know the exact difficulty level of the question papers. These 10th Standard SSLC Maths Previous Year Question Papers in Malayalam Medium and English Medium are useful to understand the pattern of questions asked in the board exam. Know about the important concepts to be prepared for Kerala Board Exams and Score More marks. Here is the latest Kerala SSLC Maths Previous Question Papers Free Download given below. Kerala SSLC Maths Model Question Papers in English Medium • • • • • Kerala SSLC Maths M...

Chapter-wise Previous Year Questions with Solutions are available here for all the subjects such as Physics, Chemistry, Maths, and Biology. All these questions asked in the previous exams are available in PDF format by LearnCBSE and can be downloaded easily. To make the students of 9th, 10th, 11th, and 12th standard prepare well for the board exam, we are providing here last 10 year’s questions chapter wise. By solving these previous questions students will get an idea of questions pattern and difficulty level. Previous year’s 9th, 10th, 11th, and 12th chapter wise questions will help student to know the weightage of marks carried by each chapter. Based on that student can prepare for the exam, by preparing the important chapter which has more weightage. Students should use these chapter wise previous questions to test themselves and check whether they are prepared completely for the board exam or not. They should solve the questions in the given time duration, which will help to manage their timings during the final exam. Expert Teachers at LearnCBSE.in has collected chapter wise previous year questions and solved in accordance with CBSE marking scheme. Solutions for important questions are prepared in simple language, point to point and balanced answers for the examination point of view. Chapterwise Important Questions with Answers for CBSE Class 6 to 12 – All Subjects Chapterwise Important Questions for CBSE Class 6 to 12 – Maths & Science (Physics, Chemistry and Biolog...

This page contains Important Questions for Class 10 Maths Chapter8Introduction to Trigonometry, which will help the students to prepare for the CBSE Class 10 maths Board exam 2022-23. It help the doing better in their maths paper. Extra questions of Chapter 8Introduction to Trigonometry given here which are based on the pattern of CBSE NCERT book. Students will learn about the entire syllabus and learn how to solve problems in preparation for the exams. Important Questions Class 10 Maths contains all types of questions which could be asked in the examination. We have included short answer questions as well as long answer questions for Chapter 8Introduction to Trigonometry. For more exercise, students can also refer to the Introduction to Trigonometry NCERT Solutions. Students can solve these questions and check their answers on the website. All the questions are solved in detail. 1.If sec θ + tan θ = 7, then evaluate sec θ – tan θ. Solution We know that, sec 2θ – tan 2θ = 1 ⇒ (sec θ + tan θ) (sec θ – tan θ) = 1 ⇒ (7) (sec θ – tan θ) = 1 …[sec θ + tan θ = 7] ∴ sec θ – tan θ = 1/7 2. Prove that (1+tan A - sec A) (1+tan A + sec A) = 2 tan A Solution LHS = (1+tan A) 2 - sec 2 A = 1+ tan 2 A + 2 tan A - sec 2 A = sec 2 A + 2 tan A - sec2 A = 2 tan A = RHS 3. If tan A = cot B, then find the value of (A+B) Solution We have, tan A = cot B tan A = tan(90°-B) A = 90° - B Thus, A + B = 90° 4. If sinθ + sin 2θ = 1 then prove that cos 2θ + cos 4θ = 1. Solution sinθ + sin 2θ = 1 ⇒ sinθ ...

Chapter-wise Previous Year Questions with Solutions are available here for all the subjects such as Physics, Chemistry, Maths, and Biology. All these questions asked in the previous exams are available in PDF format by LearnCBSE and can be downloaded easily. To make the students of 9th, 10th, 11th, and 12th standard prepare well for the board exam, we are providing here last 10 year’s questions chapter wise. By solving these previous questions students will get an idea of questions pattern and difficulty level. Previous year’s 9th, 10th, 11th, and 12th chapter wise questions will help student to know the weightage of marks carried by each chapter. Based on that student can prepare for the exam, by preparing the important chapter which has more weightage. Students should use these chapter wise previous questions to test themselves and check whether they are prepared completely for the board exam or not. They should solve the questions in the given time duration, which will help to manage their timings during the final exam. Expert Teachers at LearnCBSE.in has collected chapter wise previous year questions and solved in accordance with CBSE marking scheme. Solutions for important questions are prepared in simple language, point to point and balanced answers for the examination point of view. Chapterwise Important Questions with Answers for CBSE Class 6 to 12 – All Subjects Chapterwise Important Questions for CBSE Class 6 to 12 – Maths & Science (Physics, Chemistry and Biolog...

2016 Very Short Answer Type Questions [1 Mark] Question 1. If Figure, AB is a 6 m high pole and CD is a ladder inclined at an angle of 60° to the horizontal and reaches up to a point D of pole. If AD = 2.54 m, find the length of the ladder.(use √3=1.73) Solution: Question 2. A ladder, leaning against a wall, makes an angle of 60° with the horizontal. If the foot of the ladder is 2.5 m away from the wall, find the length of the ladder. Solution: Question 3. An observer, 1.7 m tall, is 20√3 m away from a tower. The angle of elevation from the eye of observer to the top of tower is 30°. Find the height of tower. Solution: Short Answer Type Questions II [3 Marks] Question 4. The angles of depression of the top and bottom of a 50 m high building from the top of a tower are 45° and 60° respectively. Find the height of the tower and the horizontal distance between the tower and the building, Solution: Question 5. A man standing on the deck of a ship, which is 10 m above water level, observes the angle of elevation of the top of a hill as 60° and the angle of depression of the base of hill as 30°. Find the distance of the hill from the ship and the height of the hill. Solution: Question 6. Two men on either side of a 75 m high building and in line with base of building observe the angles of elevation of the top of the building as 30° and 60°. Find the distance between the two men Solution: Question 7. A 7 m long flagstaff is fixed on the top of a tower standing on the horizontal p...

Expert Teachers at HSSLive.Guru has created KBPE Kerala SSLC Maths Previous Year Model Question Papers with Answers for Class 10 Kerala State Board Syllabus 2020-2021 in English Medium and Malayalam Medium Pdf free download are Part of Here we have provided SCERT Kerala SSLC Maths Model Question Papers 2020-21 with Answers for Class 10th Std. Students can view or download the Kerala State Board SSLC Maths Previous Year Question Papers and Answers Malayalam English Medium for their upcoming Kerala SSLC board examinations. Students can also read Board Kerala Board Textbook SCERT, Kerala Class SSLC Class 10 Subject SSLC Maths Chapter Previous Year Question Papers, Model Papers, Sample Papers Year of Examination 2021, 2020, 2019, 2018 Category Kerala Syllabus Question Papers Kerala SSLC Maths Previous Year Model Question Papers with Answers These SSLC Maths Model Question Papers 2021 Kerala with Answers Pdf are designed according to the latest exam pattern, so it will help students to know the exact difficulty level of the question papers. These 10th Standard SSLC Maths Previous Year Question Papers in Malayalam Medium and English Medium are useful to understand the pattern of questions asked in the board exam. Know about the important concepts to be prepared for Kerala Board Exams and Score More marks. Here is the latest Kerala SSLC Maths Previous Question Papers Free Download given below. Kerala SSLC Maths Model Question Papers in English Medium • • • • • Kerala SSLC Maths M...

Mar 10, 2021 • 1h 1m • 146 views This course prepared by Kunal sir will help all those students who want a quick revision of the chapter Trigonometry. He will clear all your doubts related to the chapter in this session. The interested class 10th learners can join the class at any stage of their preparation. The medium of instruction will be in English and notes will also be provided in English.

This page contains Important Questions for Class 10 Maths Chapter8Introduction to Trigonometry, which will help the students to prepare for the CBSE Class 10 maths Board exam 2022-23. It help the doing better in their maths paper. Extra questions of Chapter 8Introduction to Trigonometry given here which are based on the pattern of CBSE NCERT book. Students will learn about the entire syllabus and learn how to solve problems in preparation for the exams. Important Questions Class 10 Maths contains all types of questions which could be asked in the examination. We have included short answer questions as well as long answer questions for Chapter 8Introduction to Trigonometry. For more exercise, students can also refer to the Introduction to Trigonometry NCERT Solutions. Students can solve these questions and check their answers on the website. All the questions are solved in detail. 1.If sec θ + tan θ = 7, then evaluate sec θ – tan θ. Solution We know that, sec 2θ – tan 2θ = 1 ⇒ (sec θ + tan θ) (sec θ – tan θ) = 1 ⇒ (7) (sec θ – tan θ) = 1 …[sec θ + tan θ = 7] ∴ sec θ – tan θ = 1/7 2. Prove that (1+tan A - sec A) (1+tan A + sec A) = 2 tan A Solution LHS = (1+tan A) 2 - sec 2 A = 1+ tan 2 A + 2 tan A - sec 2 A = sec 2 A + 2 tan A - sec2 A = 2 tan A = RHS 3. If tan A = cot B, then find the value of (A+B) Solution We have, tan A = cot B tan A = tan(90°-B) A = 90° - B Thus, A + B = 90° 4. If sinθ + sin 2θ = 1 then prove that cos 2θ + cos 4θ = 1. Solution sinθ + sin 2θ = 1 ⇒ sinθ ...

Chapter-wise Previous Year Questions with Solutions are available here for all the subjects such as Physics, Chemistry, Maths, and Biology. All these questions asked in the previous exams are available in PDF format by LearnCBSE and can be downloaded easily. To make the students of 9th, 10th, 11th, and 12th standard prepare well for the board exam, we are providing here last 10 year’s questions chapter wise. By solving these previous questions students will get an idea of questions pattern and difficulty level. Previous year’s 9th, 10th, 11th, and 12th chapter wise questions will help student to know the weightage of marks carried by each chapter. Based on that student can prepare for the exam, by preparing the important chapter which has more weightage. Students should use these chapter wise previous questions to test themselves and check whether they are prepared completely for the board exam or not. They should solve the questions in the given time duration, which will help to manage their timings during the final exam. Expert Teachers at LearnCBSE.in has collected chapter wise previous year questions and solved in accordance with CBSE marking scheme. Solutions for important questions are prepared in simple language, point to point and balanced answers for the examination point of view. Chapterwise Important Questions with Answers for CBSE Class 6 to 12 – All Subjects Chapterwise Important Questions for CBSE Class 6 to 12 – Maths & Science (Physics, Chemistry and Biolog...