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Maths
A Level

Discriminants and determining the number of real roots of a quadratic equation

What is a discriminant?

 

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GN
400329 Views

How can I find the area under the graph of y = f(x) between x = a and x = b?

You can find the area under this graph by evaluating the definite integral of y = f(x) with respe...

JR
Answered by Jonathan R. Maths tutor
5060 Views

How do I find the equation of the normal line given a point on the curve?

The normal line to a curve at a particular point is the line through that point and perpendicular to the tangent.

A simple trick to remembering how to find the normal...

JM
Answered by Joy M. Maths tutor
76952 Views

Prove why the quadratic formula works


How to differentiate using the Product Rule

The Product Rule is used when differentiating two functions that are bei...

CM
Answered by Callum M. Maths tutor
5343 Views

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