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i) Using the power rule, f'(x) = 3x2 - 6x ii) To find stationary points, set f'(x) to 0: 3x2 - 6x = 0. 3x(x - 2) = 0. x = 0 or x = 2 So the co-ordinates are (0,f(0)) = (0, 1), and ...
Using the grid method, we know this is equal to (10100) + (1020) + (7100) + (720) = 1000+200+700+140 = 2040
1/(x2) can be written as x-2
We know that to differentiate you need to multiply by the value of the old power and minus 1 from it. This means dy/dx of y=...
If a number is to the power of 2/3, you should think of it as to the power of 1/3 (so CUBE-rooted), and then being to the power of 2 (so squared).
So here, the cube root of 64 is 4, because 4x4x4=6...
The easy way to remember these uses the acronym SOH-CAH-TOA
The function to use depends on the sides of the triangle you know in the problem.
With right angled triangles each side has a nam...
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