1- ^2 30^ 1+ ^2 30^ is equal to - Vidyadip

MCQ

$\frac{1-\tan ^2 30^{\circ}}{1+\tan ^2 30^{\circ}}$ is equal to

✓
$\cos 60^{\circ}$
B
$\sin 60^{\circ}$
C
1
D
$\tan ^2 60^{\circ}$

✓

Answer

Correct option: A.

$\cos 60^{\circ}$

(A) $\cos 60^{\circ}$

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