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need help stuck on this hard one

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Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to three decimal places where appropriate. If there is no solution, enter NO SOLUTION.)

4 sin2 θ 4 sin θ + 1 = 0

θ =

 

asked Apr 8, 2016 in PRECALCULUS by anonymous

1 Answer

0 votes

The trigonometric equation is image.

Let image.

image

Substitute image in the factor.

image.

General solution image:

If image, then image, where is an integer.

image.

The general solution is image.

answered Apr 11, 2016 by Anney Mentor

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