# HSSlive: Plus One & Plus Two Notes & Solutions for Kerala State Board

## AP Board Class 10 Maths Chapter 11 Trigonometry Optional Exercise Textbook Solutions PDF: Download Andhra Pradesh Board STD 10th Maths Chapter 11 Trigonometry Optional Exercise Book Answers

 AP Board Class 10 Maths Chapter 11 Trigonometry Optional Exercise Textbook Solutions PDF: Download Andhra Pradesh Board STD 10th Maths Chapter 11 Trigonometry Optional Exercise Book Answers

## Andhra Pradesh State Board Class 10th Maths Chapter 11 Trigonometry Optional Exercise Books Solutions

 Board AP Board Materials Textbook Solutions/Guide Format DOC/PDF Class 10th Subject Maths Chapters Maths Chapter 11 Trigonometry Optional Exercise Provider Hsslive

2. Click on the Andhra Pradesh Board Class 10th Maths Chapter 11 Trigonometry Optional Exercise Answers.
3. Look for your Andhra Pradesh Board STD 10th Maths Chapter 11 Trigonometry Optional Exercise Textbooks PDF.

## AP Board Class 10th Maths Chapter 11 Trigonometry Optional Exercise Textbooks Solutions with Answer PDF Download

Find below the list of all AP Board Class 10th Maths Chapter 11 Trigonometry Optional Exercise Textbook Solutions for PDF’s for you to download and prepare for the upcoming exams:

### 10th Class Maths 11th Lesson Trigonometry Optional Exercise Textbook Questions and Answers

Question 1.
Prove that

Hence Proved.

Question 2.
Prove that sin𝜃−cos𝜃+1sin𝜃+cos𝜃−1 = 1sec𝜃−tan𝜃 using the identity sec2 θ = 1 + tan2 θ.

From (1) and (2), we get L.H.S. = R.H.S.
Hence Proved.

Question 3.
Prove that (cosec A – sin A) (sec A – cos A) = 1tan𝐴+cot𝐴
L.H.S. = (cosec A – sin A) (sec A – cos A)

Now

From (1) and (2), we get
L.H.S. = R.H.S.
∴ (cosec A – sin A) (sec A – cos A) = 1tan𝐴+cot𝐴

Question 4.
Prove that 1+sec𝐴sec𝐴 = sin2𝐴1−cos𝐴

Question 5.
Prove that (1+tan2𝐴1+cot2𝐴) = (1+tan𝐴1+cot𝐴)2 = tan2 A

Question 6.
Prove that (sec𝐴−1sec𝐴+1) = (1−cos𝐴1+cos𝐴)

∴ L.H.S. = R.H.S.

## Andhra Pradesh Board Class 10th Maths Chapter 11 Trigonometry Optional Exercise Textbooks for Exam Preparations

Andhra Pradesh Board Class 10th Maths Chapter 11 Trigonometry Optional Exercise Textbook Solutions can be of great help in your Andhra Pradesh Board Class 10th Maths Chapter 11 Trigonometry Optional Exercise exam preparation. The AP Board STD 10th Maths Chapter 11 Trigonometry Optional Exercise Textbooks study material, used with the English medium textbooks, can help you complete the entire Class 10th Maths Chapter 11 Trigonometry Optional Exercise Books State Board syllabus with maximum efficiency.

## FAQs Regarding Andhra Pradesh Board Class 10th Maths Chapter 11 Trigonometry Optional Exercise Textbook Solutions

#### Can we get a Andhra Pradesh State Board Book PDF for all Classes?

Yes you can get Andhra Pradesh Board Text Book PDF for all classes using the links provided in the above article.

## Important Terms

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