Question

sin2 30o +sin2 45 +sin2 60+sin sin2 90o​

Answer 1

Explanation:

sin²30° + sin²45° + sin²60° + sin²90°

= ½ + 1/root2 + root3 / 2+ 1

= (3 + root3) /2 + root2 / 2

= (3 + root3 + roor2) / 2

Answer 2

answer;-

 10/4

steps:-

sin2*30+sin2*45+sin2*60+sin2*90

(1/2)^2 +(1/@2)^2 + (@3/2)^2 + 1

1/4 + 1/2 + 3/4 + 4/4

10/4