Question

prove that sin square A+ cos square A=1​

Answer 1

we know the identity that,

sin square A +cos squrare A =1

thus it is prove that sin square A +cos square A=1

Answer 2

sin =p/h and cos=b/h

p^2/h^2+b^2/h^2

p^2+b^2/h^2

h^2/h^2=1