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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
25 Oct 2021

Given information

Given the expression is .

The main objective is to find the exact value of the expression.

The formulas for a trignometric ratios using the right traingle are defined as follows:

 

Step-by-step explanation

Step 1.

Let .

Then,

 

From and  one have .

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