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Chapter 6: Q. 13 (page 395)

In problems 11-26,use the fact that the trigonometric function are periodic to find the exact value of each expression. Do not use a calculator.

tan405掳

Short Answer

Expert verified

The exact value is1.

Step by step solution

01

Step 1. Given information.

We have:

tan405鈭�鈥�

02

Step 2. Find the exact value of trigonometric function.  

The function is tan405鈭�鈥�.

Formula used:

tan胃+蟺=tan胃

Remove full rotations of 360掳until the angle is between 0掳to 360掳

We get:

tan405鈭�鈥�=tan45掳=1

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