How to derive cosh (3x)

How to derive cosh (3x) in terms of cosh (x) and sinh (x) ? Initially I start with 1/2 (e^3x+e^-3x) but I'm stuck from there
1. 2 answers
2. asked by Matilda
3. 1,736 views
Use the fact that L{f'}=sF-f(0) to derive the formula for L{cosh at}
1. 1 answer
2. asked by Sara
3. 419 views
what is the anti-derivative on square root of cosh^2(x)?The square root of cosh^2 x is just cosh x, and the integral (or
1. 0 answers
2. asked by HELP PLZ
3. 659 views
Find the numerical value of each expression. (Round your answers to five decimal places.)(a) cosh 9 (b) cosh(ln 9)
1. 5 answers
2. asked by TayB
3. 4,202 views
definite integral of (e^(8x))cosh(8x)dx from 0 to 1/16-I substitued the definition of cosh in, i.e. (e^(8x) + e^(-8x)/2 but i
1. 1 answer
2. asked by gregory
3. 681 views
Let y(x)=ln(cosh(x)+ sqrt(cosh^2(x)−1))Find the derivative Dxy= I don't know what to do with this...
1. 1 answer
2. asked by Patrick
3. 1,564 views
Let y(x)=ln(cosh(x)+ sqrt(cosh^2(x)−1))Find the derivative Dxy= I don't know what to do with this...
1. 0 answers
2. asked by Patrick
3. 815 views
Let y(x)=ln(cosh(x)+ sqrt(cosh^2(x)−1))Find the derivative Dxy= I don't know what to do with this...
1. 0 answers
2. asked by Patrick
3. 615 views
Define and then derive the expression for the MRTS. How do you derive this? I thought derive meant to receive or take something.
1. 3 answers
2. asked by anonymous
3. 708 views
I'm trying to derive the formulav^2 = v0^2 + 2a(x-x0) were zeros are subscripts my book tells me to derive it this way use the
1. 1 answer
2. asked by Physics PLEASE
3. 1,305 views