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Solution - Trigonometric Ratios of Some Specific Angles

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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

Evaluate the following expression:

(i) `tan 60º cosec^2 45º + sec^2 60º tan 45º`

(ii) `4cot^2 45º – sec^2 60º + sin^2 60º + cos^2 90º.`

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Evaluate the following

`(cos 45°)/(sec 30° + cosec 30°)`

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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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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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Evaluate the following

`(5cos^2 60° + 4sec^2 30° - tan^2 45°)/(sin^2 30°+cos^2 30°)`

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