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Functions and Limits - Set 7
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NUST Entrance Test
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Mathematics
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Functions and Limits
Set 7
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Mashaal Masha
Oct 05, 2022
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Choose the correct options for the following questions.
$cschx$=
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Difficulty: Easy
A:
$\frac{2}{e^{x}-e^{-x}}$
B:
$\frac{1}{2}{e^{x}-e^{-x}}$
C:
$\frac{e^{x}-e^{-x}}}{e^{x}-e^{-x}}$
D:
$\frac{1}{2}ln(\frac{x+1}{x-1})$
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$\sinh^{-1}x$=
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Difficulty: Easy
A:
$ln(x+\sqrt{x^{2}}-1)$
B:
$\frac{1}{2}ln (\frac{1+x}{1-x})$
C:
$ln(x-\sqrt{x^{2}-1})$
D:
$ln(x+\sqrt{x^{2}+1})$
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