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# Trigonometry Examples

Remove the absolute value.

Rewrite so is on the left side of the inequality.

Multiply by .

Move all terms not containing to the right side of the inequality.

Add to both sides of the inequality.

Add and .

Divide each term by and simplify.

Divide each term in by .

Cancel the common factor of .

Cancel the common factor.

Divide by .

Move the negative in front of the fraction.

Move all terms not containing to the right side of the inequality.

Add to both sides of the inequality.

Add and .

Divide each term by and simplify.

Divide each term in by .

Cancel the common factor of .

Cancel the common factor.

Divide by .

Divide by .

Find the intersection of and .

Convert the inequality to interval notation.