JEE MATHEMATICS MCQ: TRIGONOMETRY RATIOS

1 Easy

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Analyzing +4 | -1

The angle

\theta

whose cosine equals to its tangent is given by

View answer and explanation

Correct option: C

\sin \,\,\theta = 2\,\,\sin \,\,18^\circ

Option C (

\sin \,\theta = 2\,\sin \,18^\circ

) is correct because by setting

\cos \theta = \tan \theta

and solving for

\sin \theta

, we find that

\sin \theta

is equal to

2\sin 18^\circ

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