Question

find the value of 8sin2x cos4x sin6x, when x=15​

Answer 1

Answer:

8sin30×cos60×sin90

8×1/2×1/2×1

2

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Answer 2

$\huge\star{\tt{\underline{\underline{\red{Answer}}}}}\star$

Given: X=15°

Solution:

$\star$8sin2x = 8sin30°

$\implies$ 8 x ½

$\implies$ 4

$\star$cos4x= cos60°

$\implies$½

$\star$sin6x=sin90

$\implies$1

Now,

4 x ½ x 1

$\large\implies$$\large{\boxed{\boxed{2}}}$