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What is Pythagoras' theorem?

Pythagoras' Theorem is a rule for right-angled triangles which is used to solve problems. Explanation: For any right-angled triangle, the longest side (opposite the right angle) is called the hypotenuse . If...
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Answered by Sarah P. • Maths tutor
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How to apply the quadratic equation

First you determine which value is a, b, or c in the polynomial. Then you insert those values into the equation correctly.
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Answered by Ross N. • Maths tutor
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What is a stationary point on a curve? How do I calculate the co-ordinates of a stationary point?

A stationary point simply means a point in a curve where the gradient is equal to 0.For example, in the June 2015 C3 Paper it is asked:Find the exact values of the coordinates of the stationary points of the...
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Answered by Martin L. • Maths tutor
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A curve is defined by the parametric equations x = 3 - 4t, and y = 1 + 2/t. Find dy/dx in terms of t.

At first glance, this looks quite tricky, as usually when we are asked to find dy/dx, we have one equation, but here we have 2.So in this case, we need to use the statement that dy/dx = (dy/dt) * (dt/dx)Then...
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Answered by Wesley M. • Maths tutor
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What is the integral of (6x^2 + 2/x^2 + 5) with respect to x?

When we think of integration, we should be thinking of the same method every time; adding one to the power, and then dividing by that new power.The integral of the sum of each of these terms is equal to the ...
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Answered by Wesley M. • Maths tutor
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