यदि sin x + cos x = frac{1}{5}, तब tan 2 | vedclass

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Question

(d) $\sin x + \cos x = \frac{1}{5}$

==> ${\sin ^2}x + {\cos ^2}x + 2\sin x\cos x = \frac{1}{{25}}$ 

$\sin 2x = \frac{{ - 24}}{{25}}$

Vedclass · Accepted Answer

$\frac{{24}}{7}$

Vedclass · Answer

(d) $\sin x + \cos x = \frac{1}{5}$

==> ${\sin ^2}x + {\cos ^2}x + 2\sin x\cos x = \frac{1}{{25}}$ 

$\sin 2x = \frac{{ - 24}}{{25}}$

==> $\cos 2x = \frac{{ - 7}}{{25}}$ 

==> $	an 2x = \frac{{24}}{7}$.

यदि $\sin x + \cos x = \frac{1}{5},$ तब $\tan 2x$ का मान होगा

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