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شائع Word Problems >

cosh(9) :Enter a number:

الحلّ

cosh (9)

الحلّ

\frac{e ^{18} + 1}{2 e ^{9}}

+1

عشري

4051.54202 \dots

خطوات الحلّ

cosh (9)

cosh (x) = \frac{e ^{x} + e ^{- x}}{2}

:Use the Hyperbolic identity

= \frac{e ^{9} + e ^{- 9}}{2}

\frac{e ^{9} + e ^{- 9}}{2} = \frac{e ^{18} + 1}{2 e ^{9}}

= \frac{e ^{18} + 1}{2 e ^{9}}

أمثلة شائعة

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