Trigonometry Revision Questions

Contributed by:

Madhu Verma Sat, Sep 30, 2023 07:57 AM UTC

Class 10 CBSE Trigonometry questions.

1. Trigonometry Revision Questions
1.. If cosec θ = 5/4, find the value of cot θ and cos 𝜃
2. If θ = 45°, then what is the value of 2𝑠𝑒𝑐 2 𝜃 + 3
3. If √3sin θ = cos θ, find the value of 3𝑐𝑜𝑠 2 𝜃 + 2𝑐𝑜𝑠𝜃
4. In a right angled ∆ABC, tan B = 12/5, then find sin B.
5. If cos (A + B) = 0 and sin (A – B) = 30°, then find the value of A and B where A
and B are acute angles.
1+𝑡𝑎𝑛2 𝜃
6.. Simplify:
1+𝑐𝑜𝑡 2 𝜃
7. Given 2 cos 3θ = 3, find the value of θ.
8. Prove the identity: (sec A – cos A). (cot A + tan A) = tan A. sec A.
9. If A, B and C are the interior angles of a ∆ABC, show that sin (A+B/2) =
10. If sin θ = 1/2, then show that 3𝑐𝑜𝑠𝜃 − 4𝑐𝑜𝑠 3 𝜃 = 0

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