Question

D
Question 3
1 pts
Which expression is equivalent to sin(200°)?

-Sin 20°
cos 20°
cos 70°
-sin 70°
-
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Answer 1

Rewrite the angle as a sum or difference with its

reference angle: sin(180° + 20°)

Simplify the expression using the general

reduction formula: sin(20)

Calculate the approximate value: -0.34202

Answer: -0.34202