Question

sec (Square) A . codes (Square) A

Answer 1

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Answer 2

Here is the complete solution

$=sec^{2}A * cosec^{2}A$

$= \frac{1}{ sin^{2}A * cos^{2}A }$

multiply and devide by 4
$= \frac{4}{4 sin^{2}A * cos^{2}A }$

$= \frac{4}{ (2sinA*cosA)^{2} }$

$= \frac{4}{ sin^{2}2A }$

$= 4 cosec^{2} 2A$

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