Question

CosA/cosB=n and sinA/sinB =m then prove (m²-n²)sin²b =(1-n²)

Answer 1

I use these trigonometric identities

Sin^2 x=1-cos^2 x

Sin^2 x+cos^2x=1

R u satisfied? ❤️

Answer 2

Answer:

@RashidUmrRani

Step-by-step explanation:

nah I'm not satisfied