# How do you find #cos x= -1/2#?

##### 1 Answer

Aug 14, 2015

cos x = - 1/2 = cos 2

#### Explanation:

Cosine negative in the second quadrant. cos

cos (

Aug 14, 2015

cos x = - 1/2 = cos 2

Cosine negative in the second quadrant. cos

cos (

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