AP EAMCET Engineering 21 Apr 2019 Shift 1 Paper

Section: Mathematics

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Question : 25 of 160

Marks: +1, -0

If x ∊ (−

π

2

,

π

2

) , then log sec x =

2 cosech−1(cot2
x
2
−1)
2 cosech−1(cot2
x
2
+1)
2 coth−1(cosec2
x
2
−1)
2 coth−1(cosec2
x
2
+1)

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