the value of sin 120 +cos 150 +tan 210
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Answered by
2
Answer:
The sine, cosine and tangent of negative angles can be defined as well. ... a 150° lies in the second quadrant so cos 150° is negative. ... The coordinates of P are (cos 210°, sin 210°) .
Answered by
2
Answer:
0.577
EXPLANATION
sin 120 +cos 150 +tan 210
0.866+( −0.866) + 0.577
0.866-0.866+0.577
0+0.577
0.577
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