Math, asked by gantaharshitha1228, 1 month ago

sin3x / sinx - cos3x/cosx =2 prove this

Answers

Answered by adityathakur99991

0

Step-by-step explanation:

L. H. S = sin3x/sinx-cos3x/cosx

=sin3xcosx-cos3xsinx /sinx.Cosx

= Sin(3x-x) / sinx. cosx

=sin2x / sinx. cosx

=2Sinxcosx/ sinx cosx

=2

=R.H.S

Use formula:-

1.SinACosB - CosAsinB= Sin(A-B)

2. Sin2A= 2SinACosA

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