find the value of sin 660°
Answers
Answered by
1
Step-by-step explanation:
Remove full rotations of 360° until the angle is between 0
° and 360°.
sin(300)
Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Make the expression negative because sine is negative in the fourth quadrant.
−
sin(60)
The exact value of sin (60) is √3/2 .
−
√3/2
The result can be shown in multiple forms.
Exact Form:
−
√3/2
Answered by
1
Answer:
The value of -sin[660] is -root3/2
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