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(3* square root of 2) square= (3* square root of 2) * (3* square root of 2)
now lets remove the brackets
remember to multiply the number outside the square root; so gives us 33 =9...
The stationary point of a curve is where it changes direction, that is the gradient goes from pos...
First, remember the compound angle formula for cosine:
Recall that a geometric progression is a sequence (a_n) defined ...
The chain rule is incredibly useful when differentiating compositions of funcions.
Until now you have really only met dy/dx as your derivative. By imagining dy/dx as a fraction, you...
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