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First, check whether the triangle in the question is a right angle. If it is then SOHCAHTOA is used every time.

If not, count how many sides we know the length of and how many angles we know the va...

An easy way to integrade and differentiate simple equations is by bringing up all the denominators, in this case rewrite 3/x^2 into 3x^-2. Thus it will be easier to manipulate the powers. For Integration ...

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=...