Sin 60° has the same value as
I. Sin 120&d...
Sin 60° has the same value as
I. Sin 120°
II. cos 240°
III. -sin 150°
IV. cos 210°
V. sin 240°
I only
II only
IV only
III only
IV and V only
Correct answer is A
In the second quadrant, sin120=sin(180−120)
= sin60
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