Find all values of x in the interval [0°, 360°) that satisfy the equation. Round approximate answers to the nearest tenth of a degree.sin2  = cos x

A. {60°, 120°}
B. {70.5°, 109.5°}
C. {70.5°, 289.5°}
D. {60°, 300°}


Answer: C

Mathematics

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A.
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A.
B. - 
C.
D. - 

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Find the dot product of u and v. ? ?

A.  78
B.  81
C.  80
D.  79
E.  82

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Solve.Find the sum of the first 88 positive multiples of 3.

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