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Maths
A Level

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...

Answered by Joy M. • Maths tutor
62612 Views

Prove why the quadratic formula works

The quadratic formula is 

5489 Views

How to differentiate using the Product Rule

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

Answered by Callum M. • Maths tutor
4507 Views

What is the derivative of x^x

Firstly we should notice the similarities between this expression and expressions of the standard type ax. 

Answered by Daniel K. • Maths tutor
4570 Views

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