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When do I use the Sine rule?

You use the sine rule (a/sina=b/sinb) when you know 2 angles and one side amd you want to find out what the length of the side opposite one of the angles is.
ES
Answered by Edward S. • Maths tutor
4275 Views

Use implicit differentiation to find the derivative of 2yx^2, with respect to x.

To solve this question we use the product rule, where we differentiate one variable whilst keeping the other constant, and vice versa, adding the two results together to get our answer. A helpful formula is ...
DW
Answered by Daniel W. • Maths tutor
9294 Views

3x+2y=18, 2x-y=5 solve for x and y

x=4 y=3
BB
Answered by Benjamin B. • Maths tutor
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What is meant by the term specific heat capacity?

Specific heat capacity does tell you how much energy a substance needs to increase their temperature and so substances with a low specific heat capacity (SHC) will increase in temperature more rapidly than t...
TM
13999 Views

How do I solve simultaneous equations graphically? e.g (1) 4x - 3y = 11 (2) 3x + 2y = 4

Firstly, let's rewrite each of these equations as the equation of a line i.e. in terms of y. So we have: (1) y = 4x/3 - 11/3 (2) y = 2 - 3x/2 Draw line (1) on a graph. The (x,y) co-ordinates of any point on ...
DL
Answered by Daniel L. • Maths tutor
4101 Views