Question

sine square ninety degree plus signs square seventy degree

Answer 1

ans; sin square 90 deegre+cos square (90-70)

sin square 90+cos square 30

putting the value of sin 90, and cos 30

1 square + root 3/2 whole square

Ans: 5/2

Hope it helps, if yes plz mark as brainlest

Answer 2

.ur ANS in the above pic..