en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular Word Problems >

cosh(9) :Enter a number:

Solution

cosh (9) : E n t er a n u mb er :

Solution

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

+1

Decimal

4051.54202 \dots

Solution steps

cosh (9)

Use the Hyperbolic identity:

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

= \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}}

Popular Examples

The sum of two numbers is 48. The difference of the two numbers is 34.The stock of Company A lost 4.25% today to 30.64. What was the opening price of the stock in the beginning of the day?a number divided-9 is-16 Aaron is five years younger than Roy.In four years time Roy will be twice as old as Aaron John is 4 times as old as Martha. In 5 years, the sum of their ages is 50.

Frequently Asked Questions (FAQ)

What is the value of cosh(9) :Enter a number: ?
The value of cosh(9) :Enter a number: is (e^{18}+1)/(2e^9)