Homework Help: Calc

Posted by Tammy on Wednesday, May 2, 2007 at 2:57pm.

intergral of (x^3 -4x + 3)/(2x) dx

would this be ln abs(x^3-4x+3) + C?
I don't really understand how to solve this problem.

d/dx (tan (x^2))

sec^2(x^2)(2x)

would this be the correct answer to find the derivative of tan (x^2)?

no, because if you differentiate your answer you don't get what you started with.

divide the 2x into each term so that your expression becomes

(1/2)x^2 - 2 + 3/(2x)

now the integral of that is

(1/6)x^3 + 2x + (3/2)lnx + c

yes, to your derivative of tan x^2

No one has answered this question yet.

Answer this Question

Related Questions

Math differentiation - Can somebody please check these over for me? I really ...
Math differentiation - 1. y = x^x 2. y = (sin^2xtan^4x)/(x^2+1)^2 3. y = x^(1/x...
maths - Choose the option that gives an expression for the indefinite integral &...
Calc - a) y =ln(x-1) find dy/dx=? b) y=3 ln x - ln (1/x) where x >0, dy/...
mathematics - ∫▒dx/(x√(2x^2+5x+1)) 2. &#8747...
calc - Find the critical number(s) of f(x)= abs(2x-4) What is the derivative of ...
Calc - y=ln(x+1) +ln(x-1) find dy/dx I have trouble with this problem since i&#...
integration by parts - s- integral s ln (2x+1)dx ? = ln(2x+1)x - s x d( ln (2x+1...
Calculus - Use implicit differentiation to find dy/dx if cos xy = 2x^2 - 3y. I&#...
Calculus (repost) - Use implicit differentiation to find dy/dx if cos xy = 2x^2...

For Further Reading

First Name:
School Subject:
Answer: