Simplify sec(theta)^2-tan(theta)^2+cot(theta)^2

$\sec^{2} (θ) - \tan^{2} (θ) + \cot^{2} (θ)$

Step 1

Apply pythagorean identity.

$1 + \cot^{2} (θ)$

Step 2

Apply pythagorean identity.

$\csc^{2} (θ)$

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