Saturday

September 20, 2014

September 20, 2014

Posted by **Jessica** on Wednesday, December 5, 2007 at 3:44am.

- Math -
**xX_Supaman_Xx**, Wednesday, December 5, 2007 at 5:25amd/dx x^2+3x = 2x+3

- Math -
**Reiny**, Wednesday, December 5, 2007 at 8:12amthe derivative of a function f(x) is

Limit [f(x+h) - f(x)]/h

h--> 0

so derivative of x^2 + 3x =

Lim[(x+h)^2 + 3(x+h) - x^2 - 3x]/h =

h--> 0

Lim [2hx + h^2 + 3h]/h =

h--> 0

Lim [2x + h + 3\]

h--> 0

= 2x + 3

**Answer this Question**

**Related Questions**

Calculus derivatives - f(a) = a + √a (a) Find the derivative of the ...

calculus - Find the derivative of the function using the definition of ...

Calculus - Find the derivative of the function using the definition of a ...

math - find derivative using limit definition: f(x) = x - sqrt(x) so f'(x) = lim...

Calculus - Find the derivative of m(x)=1/(x+1) by using the definition of the ...

Calculus - derivatives - Okay, I want to find the derivative of (x^x)^(x^x)... ...

calc - find derivative using limit definition: f(x) = x - sqrt(x) so f'(x) = lim...

calculus - You are given the following function. f(x)= (8+x)/(1-8x) (a) Find the...

Chain Rule - Any help would be much appreciated with the steps involved in each ...

Calculus - Any help would be much appreciated with the steps involved in each ...