Exact value. Find the exact value of the expression sin(60+210).

Expert Answers

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The exact value of sin(60+210) is required. sin (60 + 210) = sin 270

=> sin (360 - 90)

=> sin (-90)

For the sine function sin (-x) = -sin x

=> -sin 90

=> -1

sin(60 + 210) is exactly equal to -1

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