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Differentiate 4(x^3) + 3x + 2 with respect to x

Solution: 12x+ 3

Working:

General differentiation formular:  d/dx (ax) = an(xn-1

So we multiply the coefficient (constant infront) of the x term...

Answered by Tutor77028 D. Maths tutor
3368 Views

Find the acute angle between the two lines... l1: r = (4, 28, 4) + λ(-1, -5, 1), l2: r = (5, 3, 1) + μ(3, 0, -4)

To do this, we will only consider the direction vectors of each line. That is to say, the vector 'attached' to our λ and μ terms (which are called scalar parameters).We will do this because the angle betw...

Answered by Rory B. Maths tutor
11064 Views

How should I divide up my time during the exam?

Use the number of marks as a guide - if the paper is worth 80 marks and you're given 1.5 hours, I'd allocate 1 minute per mark which would give you 10 minutes (or more if you're quick) to check over your ...

Answered by Ruth R. Maths tutor
3890 Views

The point P has coordinates (3,4). The Point Q has the coordinates (a,b). A line perpendicular to PQ is given by the equation 3x+2y=7. Find an expression for b in terms of a.

As we appreciate the rule 1: gradient of line PQ multiplied by the gradient of the line perpendicular to it equals -1. Formula: m x mn=-1We use this to find the gradient of line PQ:Firstly, we find the gr...

Answered by Richard T. Maths tutor
5925 Views

Explain how the author creates tension in the following extract from 'An Inspector Calls'.

The author, J B Priestley, creates a sense of tension in this extract from the play 'An Inspector Calls' in a number of different ways. First, the author creates a sense of pressure and anticipation by us...

Answered by Ellie W. English Literature tutor
3791 Views

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