Help | Search Robot | Login

Hyperbolic Functions

Remaining Time: Unlimited

Hyperbolic Functions

The hyperbolic functions are defined in terms of certain combinations of ex and e−x. These functions arise naturally in various engineering and physics applications, including the study of water waves and vibrations of elastic membranes. Another common use for a hyperbolic function is the representation of a hanging chain or cable, also known as a catenary.

The shape of a strand of silk in a spider’s web can be described in terms of a hyperbolic function. The same shape applies to a chain or cable hanging from two supports with only its own weight.

The hyperbolic sine and hyperbolic cosine are defined as

sinhx=ex−e−x2 and coshx=ex+e−x2

The other hyperbolic functions are then defined in terms of sinhx and coshx.


Activity



Differentiation formulas for the hyperbolic functions.


fx ddxfx
sinhx coshx
coshx sinhx
tanhx sech2x
cothx −csch2x
sechx −sechxtanhx
cschx −cschxcothx

 

Exercise 1

Evaluate the following derivative.

 

Enclose numerators and denominators in parentheses. For example,   a − b / 1 + n  .  Include a multiplication sign between symbols and enclose arguments of functions in parentheses. For example,  tanh a * x  . 

ddxtanhx6+7x=

 

 

HintPenalty 
Hint0.0

 

Exercise 2

Evaluate the following derivative.

 

Enclose numerators and denominators in parentheses. For example,   a − b / 1 + n  .  Include a multiplication sign between symbols and enclose arguments of functions in parentheses. For example,  tanh a * x  . 

ddx1sinhx5=

 

 

Exercise 3

Find the derivatives of fx=tanhx2+1.

 

Include a multiplication sign between symbols. For example,  a * x . Enclose arguments of functions, numerators, and denominators in parentheses. For example, sina*x or   a − b / 1 + n  .

  d dx tanh x 2 + 1 = 

 

HintPenalty 
Hint0.0
 
Build Number : 1.260915.25112