Math, asked by manasijvs, 5 months ago

(a) Prove that sin2 8x - sin2 4x = sin 12x sin 4x

Answers

Answered by sandy1816

18

Answer:

we know sin²A-sin²B=sin(A+B)sin(A-B)

Now,

sin²8x-sin²4x

=sin(8x+4x)sin(8x-4x)

=sin12xsin4x

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