Introduction to Trigonometry Class 10 Important Questions | NCERT Maths Chapter-8

Introduction to Trigonometry Class 10 Important Questions

The start of class 10 marks the beginning of the foundation for class 11 and class 12. It is very important study the basics in order to understand each and every chapter properly. In this page, we have provided all the important question for cbse class 9 that could be asked in the examination. Students also need to study the ncert solutions for class 10 in order to gain more knowledge and understanding the lessons. Questions and Answers are way to learn the new things in a proper way. NCERT textbooks downloads for class 9 in pdf are also available for the students if they need more help. By downloading these books, they can study from it. Our experts also prepared revision notes for class 9 so that students should see the details of each and every chapters. Class 9 important questions are the best to revise all the chapters in the best way.

Question 1.
Given tan A = 5/12 , find the other trigonometric ratios of the angle A.
Solution:

Question 2.
Prove that 1/sec A – tan A-1/cosA=1/ cos A -1/sec A + tan A
Solution:

Question 3.
If sin θ = 12/13, 0° < θ < 90°, find the value of: sin² θ- cos² θ /2 sin θ. cos θ  x 1/tan² θ
Solution:

Long Answer Type Questions [4 Marks]

Question 4.
If sin (A + B) = 1 and tan (A – B) = 1/√3, find the value of:

1. tan A + cot B
2. sec A – cosec B

Solution:

Question 9.
If sec A = x + 1/4x, prove that sec A + tan A = 2x or 1/2x
Solution:

Question 10.

Solution:

Question 11.

Solution:

Question 12.
If sec θ – tan θ = x, show that: sec θ=1/2(x+1/x) and tan θ=1/2(1/x-x)
Solution:

Important Links

NCERT Quick Revision Notes- Coordinate Geometry

NCERT Solution- Coordinate Geometry

Important MCQs- Coordinate Geometry

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