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Maths
A Level

How do I use the chain rule for differentiation?

Let’s say we’re given the equation y=(2x-6)^4we would know how to differentiate x^4, therefore we can take the substitution u=2x-6 to give us the equation y=u^4we then differentiate this equation (dy/du) ...

Answered by Natasha A. Maths tutor
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C1 June 2014 Q)4 - https://pmt.physicsandmathstutor.com/download/Maths/A-level/C1/Papers-Edexcel/June%202014%20QP%20-%20C1%20Edexcel.pdf

a) At A y=0, therefore if we solve: 0= (1/x)+1 we get x=-1.b)First step when drawing graphs is to find roots. x=0, x=2. Because x=0 acts as two of roots the graph only touches x=0. The graph is a positive...

Answered by Arun S. Maths tutor
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Maths C1 2017 1. Find INT{2x^(5) + 1/4x^(3) -5}


INT{2x5 + (1/4)x-3 -5} = (2/6)x6 + (1/8)x-2 -5x + c =(1/3)x6 + (1/8)x-2 -5x + c

Answered by Arbnor K. Maths tutor
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How would you work out the equation of the normal at a point (2,5) given the equation of a line?

You are given the equation of a line in the form of y=mx+c. From this, you know that 'm' represents the gradient, which can also be represented as dy/dx. We now need to work out the gradient of the normal...

Answered by Rohil C. Maths tutor
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How to find the angle between two 3-dimensional vectors:

The formula to find the cosine of the angle is: cosA= u.v/|u|x|v|; 1.u.v means that you multiply the x coordinates together, then the y coordinates and the z coordinates,...

Answered by Fruzsina F. Maths tutor
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