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Trigonometry
Question

Use a graphing calculator to make a conjecture as ...

Use a graphing calculator to make a conjecture as to whether each equation is an identity. 

\( \sec x = \sqrt { \tan ^ { 2 } x + 1 } \) 

Is \( \sec x = \sqrt { \tan ^ { 2 } x + 1 } \) an identity? 

Yes 

No 

Answer

Yes

Solution
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