Top answers

Maths
A Level

How do I differentiate 4x^3 + 2x + x^4 with respect to x?

With differentiation and integration, we can take each term separately. In general, to difference a term involving x's with respect to x, you first multiply the power of x by the coefficient of x to find ...

Answered by Laura T. Maths tutor
2783 Views

When I try to integrate by parts, I end up in an infinite loop. Why is this, and how do you stop?

This could be happening for two reasons.  

Firstly, the negative form of the expression that you are being asked to integrate could be appearing in your answer, after you've used the 'integrating b...

Answered by Tommy S. Maths tutor
5311 Views

How do you differentiate?

for example 3x2+2x+1 differentiated? axdifferentiates to (an)xn-1 therefore 3x2 goes to 6x  2x goes to 2 and 1 goes to 0 so the fina...

Answered by Kate B. Maths tutor
2801 Views

Integrate ((5x^3) + ((2x)^-1) + (e^2x))dx.

int(5x3 + (2x)-1 + e2x )dx

=int(5x3)dx + int((2x)-1)dx + int(e2x )dx

int(5x3)dx = (5/4)x4+ c          ...

Answered by Danny L. Maths tutor
4047 Views

How would you derive y = function of x; for example: y = 3x^3 + x^2 + x

The best way to remember derivatives is to use algebra, and the general function is y = axn -> dy/dx = anxn-1

So for this equation dy/dx = (3x3)x3-1 + (2x1)x

Answered by George A. Maths tutor
2712 Views

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