sin600cos330+cos120sin150
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Answered by
1
Answer:
600 plus 330 plus 120 plus 150
Answered by
1
Answer:
-1
Step-by-step explanation:
Given Sin 600° Cos 330° + Cos 120° Sin 150°
= Sin (6 x 90 + 60) Cos (4x90 - 30) + Cos (90 + 30) Sin (2x90 -30)
= - Sin 60 Cos 30 - Sin 30 Sin 30
= -√3 / 2 x √3 / 2 - 1 / 2 x 1 / 2
= -3 / 4 - 1 / 4 = - 1.
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