Question

answer the question please​

Answer 1

tan^2 20 =

Decimal Form:

• 0.13247433

hope it helps... please mark me as brainliest

Answer 2

$\tan(2 \theta) = \frac{2 \tan( \theta) }{1 - \tan ^{2} ( \theta) }$

$\implies \tan ^{2} ( 2\theta) = (\frac{2 \tan( \theta) }{1 - \tan ^{2} ( \theta) } ) ^{2}$

$\implies \tan ^{2} (2 \theta) = \frac{4 \tan ^{2} ( \theta) }{1 - 2 \tan ^{2} ( \theta) + \tan ^{4} ( \theta) }$