Top answers

How would you differentiate between the hypotenuse, opposite and the adjacent in a triangle?

Firstly, in a right angled triangle, the side opposite the right angle is always the hypotenuse which is the longest side in a right angle triangle. Secondly, the side opposite the given angle is your opposi...
JC
Answered by Jenny C. • Maths tutor
5070 Views

How can I calculate the standard deviation of a data set?

The formula for the variance of a data set can be easily remembered by this catchy phrase: 'The mean of the squares minus the square of the mean'. The standard deviation is equal to the square root of the va...
RM
Answered by Robin M. • Maths tutor
4629 Views

∫ x^3 *ln(2x) (from 2->1) can be written in the form pln 2 + q, where p and q are rational numbers. Find p and q.

Firstly I would think about how I could integrate this. In this case you would need integrate by parts. I use LATE to decide which value is u and v' which stands for Log,Algebra,Trig,Exp. Which ever one appe...
Answered by • Maths tutor
6287 Views

What is the equation of the tangent of the circle x^2+y^2=25 at the point (3,4)

Graph Firstly, if not drawn for you it would be best to draw the graph which is given to you (in this case you should notice is a circle with a radius 5 as the general equation for a circle is (x-a) 2 +(y-b)...
AA
Answered by Alireza A. • Maths tutor
9678 Views

Factorise the equation x^2 + 5x+6 = 0

(x+3)(x+2)
JW
Answered by James W. • Maths tutor
3263 Views