sin^2 90 + cos^2 45
Answers
Answered by
1
Step-by-step explanation:
Sin 90 = 1
Cos 45 = 2^1/2 / 2
Sin^2 90 + cos^ 45 = (1)^2+ (2^1/2/2)^2
= 1 + 2/4
= 4+2/4
= 6/4 = 3/2
Similar questions