Find the value of sin^2 52 1/2 - sin^2 22 1/2
Answers
Answered by
0
Step-by-step explanation:
= sin252(1/2) - sin222(1/2)
= sin[52(1°/2) + 22(1°/2).sin[52(1°/2) - 22(1°/2)]
= sin75°.sin30°
= √3+1/2√2.1/2
= √3+1/4√2
Similar questions