Question

pls solve this question​

Answer 1

Step-by-step explanation:

sin x + sin 3x + sin 5x + sin 7x = sin 16x

-----------------------

cos x + cos 3x + cos 5x + cos 7x = cos 16x

sin16x = tan

cos 16x

Answer 2

HEY MATE YOUR ANSWER IS HERE...

$\frac{sin \: x + 3sin \:x + 5sin \: x + 7sin \: x }{cos \: x + 3cos \: x + 5cos \: x + 7cos \: x} = \frac{16 \: sin \: x}{16 \: cos \: x}$

$\frac{ \sin \:x }{ \cos \: x } = \tan \: x$

hence

$\frac{16 \: sin \: x}{16 \: cos \: x} = 16 \: \tan \: x$

★ therefore option a is correct ★

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