Question

Find the value of cos^2 60 + sin^2 30

Answer 1

cos^2 30+ sin^2 30

now values:-

cos 30=1/2

sin 30=1/2

so

cos^2 30=1/4

sin^2 30=1/4

1/4+1/4=2/4=1/2

so

cos^2 30 +sin ^2 30=1/2

Answer 2

your ans

given :-

cos^2 60+ sin^2 30

now values:-

cos 60=1/2

sin 30=1/2

so

cos^2 60=1/4

sin^2 30=1/4

1/4+1/4=2/4=1/2

so

cos^2 60 +sin ^2 30=1/2