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Find the stationary points of y=x^3 + 3x^2 - 9x - 4

The stationary points of the function are the points at which the gradient is equal to 0. (If you draw out a standard y=x^3 graph, you can see the gradient is 0 at the points where the graph changes direc...

NB
2268 Views

Jo wants to work out the solutions of x^2 + 3x – 5 = 0. Can the solution be worked out?

In this question we are looking for a solution to x where the equation will equal to 0.We can first try factorising this, in the framework: (x+a)(x+b). Remembering the method of FOILS (first, outer, inner...

VG
Answered by Vivek G. Maths tutor
5017 Views

Explain the concept of price elasticity

Price elasticity of demand (PED) is how demand of a good/service changes as the price of the good/service changes.As a formula: % change in quantity demanded / % change in pricePED < 1 means the quanti...

VG
Answered by Vivek G. Economics tutor
1680 Views

Find the coefficient of the constant term of the expression (2x+1/(4x^3 ))^8

In order to find the coefficient we need to know which term of the binomial expansion is constant. We know the expression to find the coefficient is (8Cn)(2^n)((1/4)^(8-n)), where n is the power ...

FE
Answered by Francisco E. Maths tutor
3354 Views

How do I prepare for my 'science' interview when applying for Medicine at Cambridge?

When applying for medicine at Cambridge - you will likely have two or even three interviews. One of these interviews is likely to be a bit more 'academic' or 'science-focussed' than the others. The purpos...

KJ
1504 Views

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