$\tan \,\,6^\circ \,\,\tan \,\,42^\circ \,\,\tan \,\,66^\circ \,\,\tan \,\,78^\circ {\rm{\;}}$ is equal to

JEE MATHEMATICS MCQ: MULTIPLE AND SUBMULTIPLE ANGLES

1 Easy

1 of 1

Application +4 | -1

\tan \,\,6^\circ \,\,\tan \,\,42^\circ \,\,\tan \,\,66^\circ \,\,\tan \,\,78^\circ \mathrm{\;}

is equal to

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Correct option: A

Option A (1) is correct because the expression simplifies to 1 using trigonometric identities.

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