You don't need to use the quoient rule in this case, consider
In your case and
therefore
Hi,
I would be really grateful if someone would help me!
With regard to the function f(x) = ln(e^x + e^-x)
By applying the composite rule does this turn into:
1 / e^x+ e^-x ?
And by applying the quotient rule, does the first equation turn into:
e^x + e^ -x / e^x - e^ -x
Many thanks!!!
Please don't just say "turn into"- I would interpret that as meaning a different form of the same equation or function!
The composite rule (also called "chain rule") tells us that the derivative of f(x)= [tex]ln(e^x+ e^{-x})[/itex] is times the derivative of which is .
So the derivative of is , the reciprocal of what you gave.
That derivative is also, by the way, .