prove that (1+sinA-cosA)²÷(1+sinA+cosA)² = 1-cosA÷1+cosA
Attachments:
Answers
Answered by
1
from LHS. ,1+sin square A -cos square A / 1+sin square A +cos square A
by formula,sin square A +cos square A=1
=sin square A+cos square A. / 1+sin square A +cos square A
=1/1+1
=1/2
from RHS , 1-cosA/1+cos A
= sinA /1+1-sina
sinA /2- sinA
=1/2
provide 1/2=1/2
by formula,sin square A +cos square A=1
=sin square A+cos square A. / 1+sin square A +cos square A
=1/1+1
=1/2
from RHS , 1-cosA/1+cos A
= sinA /1+1-sina
sinA /2- sinA
=1/2
provide 1/2=1/2
Similar questions