Question

if tan=20/21 find cos theta-sin theta/cos theta+sin theta​

Answer 1

Answer:

If tan θ =20/21, show that (1-sinθ+cosθ) /(1+sinθ+cosθ)= 3/7 If tan theta =20/21, show that (1-sin theta+cos theta) 1-show-that-1-sin-cos-1-sin-cos-3-7