# Solution - Trigonometric Ratios of Some Specific Angles

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ConceptTrigonometric Ratios of Some Specific Angles

#### Question

Find the value of θ in each of the following :

(i) 2 sin 2θ = √3      (ii) 2 cos 3θ = 1

#### Solution

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#### Similar questions VIEW ALL

Choose the correct option and justify your choice :

(2 tan 30°)/(1-tan^2 30°)

(A) cos 60°

(B) sin 60°

(C) tan 60°

(D) sin 30°

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Evaluate the following

(sin 30° + tan 45° – cosec 60°)/(sec 30° + cos 60° + cot 45°)

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If tan (A + B) = √3 and tan (A – B) = 1/√3 ; 0° < A + B ≤ 90° ; A > B, find A and B.

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Evaluate the following in the simplest form:

sin 60º cos 30º + cos 60º sin 30º

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Choose the correct option and justify your choice.

(1- tan^2 45°)/(1+tan^2 45°)

(A) tan 90°

(B) 1

(C) sin 45°

(D) 0

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#### Reference Material

Solution for concept: Trigonometric Ratios of Some Specific Angles. For the course 8th-10th CBSE
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