Question

what is answer of this?
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Answer 1

Step-by-step explanation:

plz provide the formula

Answer 2

1

Step-by-step explanation:

$(1 - \sin^{2} θ)(1 + \tan^{2} θ)$

$( \cos ^{2} θ)( \sec ^{2} θ)$

$( \cos^{2} θ \times \frac{1}{ \cos ^{2}θ} )$

= 1