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Trigonometry
Question

Use the given triangles to evaluate the following ...

Use the given triangles to evaluate the following expression. If necessary, express the value without a square root in the denominator by rationalizing the denominator. 

\( \sec ( \frac { \pi } { 4 } ) \) 

Answer

\(\sec ( \frac { \pi } { 4} ) = \sqrt { 2} \)

Solution
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