Posted by **George** on Friday, September 12, 2008 at 9:31pm.

Find a formula for the derivatives of the function m(x)=1/(x+1)

Please help.....Any assistance would be greatly appreciated.

- Calculus -
**drwls**, Friday, September 12, 2008 at 9:42pm
Why plural? There is only one derivative of that function.

Let x+1 = u, so that

m(x) = m{u(x)}, m(u) = 1/u, and

du/dx = 1

Then use the chain rule

dm/dx = dm/du*du/dx

= -1/u^2 = -1/(x+1)^2

## Answer This Question

## Related Questions

- Calculus - How do you simplify the sqrt of z^2 + 5. Any assistance would be ...
- Derivatives - Find the derivatives of: 1. H(x)= sin2xcos2x The answer given is ...
- Calculus - Could anyone please help me figure out the discontinuity that is ...
- calculus - Please can someone help. I need to use the composite rule to ...
- Calculus - Find a formula for the derivatives of the function m(x)=1/(x+1) IS ...
- Algebra - Solve the system by substitution. -5x + y = -3 3x - 8y = 24 I'm not ...
- Chemistry - Complete combustion of 7.70 g of a hydrocarbon produced 23.7 g of ...
- Calculus (Derivatives) - What is the derivative of the this functon? g(x) = -500...
- Calculus - I need help finding the derivative of this function: f(x)=(X^2+2)^4/5...
- Geometrical Formula Help - Hi! Can anyone please send me a link or show me how ...

More Related Questions