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How do you rationalise the denominator?

If a denominator is has just one square root (i.e 1/(3)^0.5). Then, since it is a fraction you can multiply top and bottom by the same number and maintain the value of the fraction. Hence we multiply top and...
NA
Answered by Natasha A. • Maths tutor
4579 Views

Write down the values of (1) loga(a) and (2) loga(a^3) [(1) log base a, of a (2) log base a of (a^3)]

Let's first go to the whiteboard where I will explain what a logarithm is. The equation, loga(b) = x, could be re-written into the form, a^x = b. This is true for all logarithmic equations. There is a rule f...
SH
Answered by Sohail H. • Maths tutor
14404 Views

How do I set myself apart from other people taking the exam, so I get a higher grade.

Well, in Politics in particular, examiners are looking for evidence that you are a student that understands and can talk confidently about complex political phenomena. Do this by making it clear that you kno...
JB
Answered by James B. • Politics tutor
3760 Views

Find the stationary points of the curve given by the following function: f(x) = x^2 + 5x + 2

Differentiate the curve to get the gradient function: f'(x)= 2x + 5. Solve for x when f'(x) = 0 --> 2x + 5 = 0, 2x = -5, x = -5/2 Substitute into the original equation to find y: (-2.5)^2 + 5 * -2.5 + 2 =...
TD
Answered by Tutor49585 D. • Maths tutor
4632 Views

Computers use virtual memory, can you explain what this is and how it is used?

Virtual memory is within the hard disk of the computer. It functions in the same way as RAM, but storing open applications when there is not enough RAM. It has a slower access time than the main memory and i...
TD
3079 Views