Question

find the value of cos2 45+2sin2 30

Answer 1

Answer:

1

Step-by-step explanation:

cos2 45+2sin2 30

cos 45=1/root2

cos2 45=1/2

sin 30=1/2

2sin2 30=1/2

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

2/2=1