#shorts Calculate the exact value of sine of minus 30 degrees

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TRANSCRIPT:
Calculate the exact value of sine of minus 30 degrees.

SOLUTION

We use the formulas “sine of minus x is equal to minus sine of x” and “sine of 30 degrees is 1 over 2”.

Sine of minus 30 degrees is equal to minus sine of 30 degrees, which is equal to minus 1 over 2.

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