Math, asked by kaushalkumarsingh0, 9 months ago

1+cosA+sinA/1+cosA-sinA=1+sinA/cosA​

Answers

Answered by siddu1432
1

Taking L.H.S

=(1+cosA)+sinA/(1+cosA)-sinA. (1+cosA)+sinA/(1+cosA)+sinA

=[(1+cosA)²+sin²A+2sinA(1+cosA)/1+cos²A+2cosA-sin²A

=1+cos²A+2cosA+sin²A+2sin²A(1+cosA)/cos²A+cos²A+2cosA

=2+2cosA+2sinA(1+cosA)/2cos²A+2cosA

=2[1(1+cosA)+sinA(1+cosA)/2[cosA(cosA+1)]

=(1+cosA)(1+sinA)/cosA(1+cosA)

=1+sinA/cosA

Similar questions