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differentiate 3x^56

=(3x56)x 55
MG
Answered by Madalina G. • Maths tutor
4164 Views

The curve with the equation: y=x^2 - 32sqrt(x) + 20 has a stationary point P. Find the coordinates of P.

A stationary point implies that the gradient at this point will be equal to 0, it is a turning point in the graph. So we need to find the value of X at which dy/dx = 0. [where dy/dx is the gradient.]So we fi...
MB
Answered by Maninder B. • Maths tutor
10733 Views

Solve the equation 2(cos x)^ 2=2-sin x for 0 <=x<=180

Recall the identity ((cos x)^2+(sin x)^ 2=1). Rearrange the identity to give cos x in terms of sin x. Substitute this into the equation. Rearrange so all terms are on one side of the equation and factories t...
PG
Answered by Pablo G. • Maths tutor
4505 Views

If I had an equation with both 'x' and 'y' present, how would I find the gradient?

Using the equation (x+y) 2 =xy 2 as an example base to see how it would work in practice. The most important fact is that dy/dx =y' . Simply put, the derivative of y is dy/dx. This allows you to go through a...
OK
Answered by Oli K. • Maths tutor
3908 Views

Why, how and when do we use partial fractions and polynomial long division?

Partial fractions and long division have the same purpose which is to decompose complex expressions into simpler ones in order to easily deal with them in calculations. Think of them as tools that we use for...
DW
Answered by Daniel W. • Maths tutor
17117 Views