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Chapter 6: Q. 26 (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.

sec25蟺6

Short Answer

Expert verified

The exact value is233.

Step by step solution

01

Step 1. Given information.

We have:

sec25蟺6

02

Step 2. Find the exact value of trigonometric function.     

The function is sec25蟺6.

sec25蟺6=1cos25蟺6

Formula used:

cos2蟺+胃=cos胃

=1cos蟺6=132=233

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