Top answers

Differentiate y = (x^2 + 3)^2

We have to use the chain rule here. If we set u to the inside of the bracket, u = x^2 + 3 and differentiating we get du/dx = 2x. Now the original expression becomes y = u^2. Differentiating this with respect...
MH
Answered by Matthew H. • Maths tutor
8340 Views

How far was the Success of the German Revolution down to Martin Luther.

When looking at this Question you need to decide the impact Martin Luther had on the Reformation. Such as the impact of his 95 theses published in 1917, his exploitation of the printing press, his charisma p...
JH
Answered by Jasmine H. • History tutor
2890 Views

Convert the base-10 number 74 into an 8-bit binary number

In base-10 (denary) representation numbers are represented by saying how many units, tens, hundreds, thousands etc... there are from right to left. So for 74 there are 7 tens and 4 units. In binary, each dig...
MH
Answered by Matthew H. • Computing tutor
19449 Views

Simplify the surd sqrt(48)

When simplifying surd expressions we want to look for square numbers that are factors of the number inside the square root. If we list the square numbers (which are numbers that are the result of squaring an...
MH
Answered by Matthew H. • Maths tutor
41382 Views

Rationalise the denominator and simplify: 10/3√5 (2 marks)

First of all, you need to read the question really carefully and look at how many marks it is worth. The question is worth two marks and it is asking you to do two things: firstly, you need to ‘rationalise t...
MP
Answered by Megan P. • Maths tutor
16554 Views