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Maths
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which of these angles is obtuse?

An obtuse angle is an angle that is greater than 90degrees but less than 180 degrees. when looking at the diagram all angles apart from B are acute (as they are less than 90 degrees) Therefore B is the ob...

MS
Answered by Maiya S. • Maths tutor
2634 Views

How can I find the normal to a curve at a given point?

Take the curve y = 2x2 - 4 and point P (2,4). a) First, find the straight line tangent to the curve at point P

AP
Answered by Artyom P. • Maths tutor
4420 Views

Sketch y = 9x – 4x^3, showing where the curve crosses the x axis.

First you should look at the equation and try and get a sense of the general shape of the graph. The highest power in here is a 3, so this is a cubic graph. The coefficient (number in front of the x^3) is...

AE
Answered by Anais E. • Maths tutor
5487 Views

Solve (x^2 - 4)/(2x+4)

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