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Trigonometric Identity Simplification

Mark

Which of the following expressions is equivalent to $\frac{\cot^2 x + 1}{\csc^2 x \cdot \cos^2 x}$ for all values of $x$ for which the expression is defined?

A

$\sec^2 x$

B

$\sin^2 x$

C

$\csc^2 x$

D

$\cos^2 x$

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#1	mihikadarbha	1	1	0m 27s	73
#2	chunxiangxu.cxu	2	3	3m 13s	-3
#3	danurizayo	1	1	1m 53s	-13
#4	mahmoudjibrin08	0	1	0m 04s	-14
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#6	ywlee000000	0	1	2m 11s	-141

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