Question

if sin a=x sin(2b-a),
then show that.
tan a =( 2x tan b)/(x+1)-(x-1)tan^2b​

Answer 1

Step-by-step explanation:

A=tan

−1

x

⇒tanA=x

sinA=

x

2

+1

x

cosA=

x

2

+1

1

sin2A=2sinAcosA

sin2A=

x

2

+1

2x

solution

Answer 2

Answer:

hope it was useful

Step-by-step explanation:

trick one : by look of x-1 and x+1 its componendo and dividendo..

then given Tans , we must get idea to resolve all cos and sins.