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Maths
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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
5071 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
77480 Views

What is solution by substitution?

Simultaneous equations - Solution by substitution

As the variables (x & y) are the same in both equations, we can substitute from one equation into ...

AM
Answered by Antonia M. • Maths tutor
6238 Views

Solve the following simultaneous equations: 4x + y = 14 and 6x - y = 16

Prove why the quadratic formula works

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