Anonymous P.

asked • 05/10/23

Find the equivalent expression of the trigonometric fucntion

12cos^(2)(6x)-12sin^(2)(6x)


Answer choices:

a. 12cos^2(12x)

b. 6cos(12x)

C. 24sin(12x)

D. 24cos(12x)

E. 6sin(12x)


1 Expert Answer

By:

Josh F. answered • 05/10/23

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12cos2(6x) - 12sin2(6x)


= 12 · [cos2(6x) - sin2(6x)]


= 12 cos(12x) (by double angle formula for cosine: cos(2A) = cos2A - sin2A)

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Anonymous P.

Out of what answer choices would this be
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05/10/23

Anonymous P.

Is a,b,c,d or E?
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05/10/23

Bradford T.

It would be A if A was not cos^2(12x), just cos(12x). Otherwise not in the list. Check your answer list again.
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05/10/23

Josh F.

tutor
none of them look right to me. i think it should be 12cos12x
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05/10/23

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