AP EAPCET 25-Aug-2021 Shift 1 Paper

Section: Mathematics

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Question : 25 of 160

Marks: +1, -0

Which of the following expression is always true?

cosh‌
x
2
=√
cosh‌x−1
2
tanh(
x
2
)=
2‌sinh‌x
cosh‌x+1
sinh(
x
2
)=
sinh‌x
√2(cosh‌x+1)
sinh(
x
2
)=
sinh‌x
√2(cosh‌x−1)

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