Question

sin^2+1/(1 + tan^2º)=1 ,prove this please........​

Answer 1

Answer:

sin^2 + 1/ (1+ sin^2/cos^2). (tan^2=sin^2/cos^2)

sin^2 + 1/ (cos^2+sin^2)/cos^2

sin^2 + 1× cos^2/1

sin^2+cos^2=1. (sin^2+cos^2=1)

hope it helps....

Answer 2

Answer:

$sin { \alpha }^{2} + cos}^{2} \alpha = 1$

Hope it help you...