Question

Find the value of sin ( - 120°

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Answer 1

Answer:

Step-by-step explanation:

As we know, sin (90° + 30°) = Sin 120 degrees. Hence, sin 120 degree = cos 30°. As we know the value of cos 30° is equal to √32. Hence, the sin 120 degrees exact value is √32.

Answer 2

As we know,

sin (90° + 30°) = Sin 120 degrees.

Hence, sin 120 degree = cos 30°.

As we know the value of cos 30° is equal to √32.

Hence,

the sin 120 degrees exact value is √32.

hope it helps you..