Math, asked by apurva66, 10 months ago

13) Show that
13) Show that,
Sin8x + Sin2x/
Cos2x - Cos8x=
cos3x

Answers

Answered by sandy1816

14

Step-by-step explanation:

sin8x+sin2x/cos2x-cos8x

=2sin5xcos3x/-2sin5xsin(-3x)

=2sin5xcos3x/2sin5xsin3x

=cos3x/sin3x

=cot3x

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