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Home > INT3 > Chapter 12 > Lesson 12.2.3 > Problem 12-112


Express in terms of and and then simplify.

How can you change and to and ?
What ratios using those trig functions do they equal?

Simplify to create common denominators in the denominators of the larger fractions.

Simplify each fraction using a Giant One.

Notice you have created a common denominator.
Combine the two fractions. The numerator is a difference of two squares.
Keep simplifying.