Question

$1 + \tan^{2} a \div 1 + \cot^{2}a \\ \\ 1) \sec^{2} a \: \: 2) - 1 \: \: 3) \cot^{2}a \: \: 4) \tan^{2} a$

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Answer 1

Step-by-step explanation:

4) tan^2 a is the correct answer.

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