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Mathematics, 28.08.2019 11:00 lilbrown6369

Another math problem! this is all the information it gives me!
1+cos(6x)=
a. 2cos^2(3x)
b. 2sin^2(3x)
c. 3sin(2x)
d. 3cos(2x)

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Answers: 2
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Another math problem! this is all the information it gives me!
1+cos(6x)=
a. 2cos^2(3...
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