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(sec phi-tan phi)^2 (1+sin phi)^2 div si...

`(sec phi-tan phi)^2 (1+sin phi)^2 div sin^2 phi` =?

A

`sec phi`

B

`cos^2 phi`

C

`cos phi`

D

`cot^2 phi`

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PINNACLE-2018 Main Exam 2nd Shift-EXERCISE
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