Sec ^ 2x / tan ^ 2x = cosec ^2 x
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Step-by-step explanation:
secx = 1/cosx
tanx = sinx/cosx
sec^2x = 1/cos^2x
tan^2x = sin^2x/cos^2x
sec^2x/tan^2x = 1/ sin^2x = cosec^2x
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