Question

verify the sin^2 theta + cos^2 theta =1,for theta = 0 theta ,30 theta ,45 theta ,60 theta , 90 theta ? .

Answer 1

Answer:

sin^2 0°+cos^ 0°=0+1=1

sin^30°+cos^2 30°=1/2+root3/2=1

sin^60°+cos^260°=root3/2+1/2

sin^290°+cos^290°=1