Prove that sin2 theta + cos2 theta =1

1.	Prove that sin2 theta + cos2 theta =1
Answer» Step-by-step explanation:cos = b/h and sin = b/hLHSSin2 +cos2={p/h}2 +[b/h]2=p2 +b2 /h2=h2/h2=1=RHS.......{...HENCE PROVED}

Discussion