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dont get it this is a hard one

0 votes

Find all solutions of the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to two decimal places where appropriate.)

sec2 θ 4 = 0

θ =

 

rad

asked Apr 9, 2016 in PRECALCULUS by anonymous

1 Answer

0 votes

Step 1:

The trigonometric equation is image.

Let image.

image

Difference of squares formula: image.

image

Substitute image in the factor.

image

General solution image:

If image, then image, where is an integer.

image.

General solution image:

If image, then image, where is an integer.

image.

Solution :

The general solution is image.

answered Apr 11, 2016 by Anney Mentor

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