Solve the equation for exact solutions over the interval [0, 2π]. cos2x=−12

asked Oct 22, 2020 39.0k views

2 votes

Solve the equation for exact solutions over the interval [0, 2π].

cos2x=−12

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2 votes

Answer:

NO SOLUTION

Explanation:

The value of cosines is between -1 and 1

As a result, it will never goes to -12 no matter what

Ozkolonur answered Oct 28, 2020