show that ((cos2x+cos3x+cos8x)/(sin2x+sin3x+sin8x))=tanx


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Question Number 157217 by MathsFan last updated on 21/Oct/21

$s h o w t h a t$ $\frac{c o s 2 x + c o s 3 x + c o s 8 x}{s i n 2 x + s i n 3 x + s i n 8 x} = t a n x$
Commented by som(math1967) last updated on 21/Oct/21

$p l e a s e c h e c k y o u r q u e s t i o n$
Commented by MathsFan last updated on 21/Oct/21

$o k s i r$
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