--description--

In this video, you will learn about the Pythagorean identities.

--questions--

--text--

Which of the following is an example of a Pythagorean identity?

--answers--

$\sec^2(x) + \tan^2(x) = 1$

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$\tan^2(x) + 1 = \sec^2(x)$

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$\csc^2(x) + \cot^2(x) = 1$

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$\cot^2(x) - 1 = \csc^2(x)$

--video-solution--

2