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Differentiating (x^2)(sinx) Using the Product Rule

Firstly, what is the product rule? What does it actually say? Well, it tells us how to differentiate a function of the form uv - the product of the functions u and v. If y = uv, the product rule says: dy/dx ...
EM
Answered by Edward M. • Maths tutor
6120 Views

How do plant stomata open and close?

Stomata can be thought of as gates. This is why the size of the guard cells is so important. How the guard cells change in size is a simple matter of how much fluid they can hold - their turgor. Osmosis is t...
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Answered by Sarah M. • Biology tutor
51974 Views

How can I prepare for the French oral exams?

Best way to prepare for an Oral exam: Practise speaking Have as much conversation in French as possible, with friends or a tutor (it doesn’t necessarily need to be on the topics, any conversation in French w...
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Answered by Eleanor F. • French tutor
10243 Views

Describe how antibiotic resistance occurs.

Firstly, antibiotic resistance has to be gained by a bacterium through the mutation of a gene. This can occur due to, for example, the overuse of antibiotics or failure to complete a full course of antibioti...
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Answered by Anita H. • Biology tutor
19479 Views

Find the set of values for which: 3/(x+3) >(x-4)/x

First we must consider for which values of x the equation: 3/(x+3) = (x-4)/x is undefined. In this case, x=-3, and x=0. Now we must consider each of the cases, x<-3, -3<x<0, 0<x Case 1 (x<-3):...
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