Question

tan^2-cot^2=sec^2(1-cot^2)
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Answer 1

$\boxed{ \bf to \: prove : }$

$\mathrm{ {tan}^{2} \theta - {cot}^{2} \theta = {sec}^{2} \theta(1 - {cot}^{2} \theta) }$

$\boxed{\bf {proof : }}$

✾ Refer to the attachment

$\boxed{ \degree \smile \degree}$