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In order to find turning points, we differentiate the function. Hence we get f'(x)=2x + 4. Setting f'(x)=0 we get x = -2 and inputting this into f(x) we get y = 0 therefore the turning point is (-2,0). To...

Let y = arctan(x). Arctan(x) is difficult to differentiate but I know how to differentiate tan(x) (=sec^2(x)) so take the tan of both sides: tan(y) = x. The next step will be to differentiate both sides. ...

6 sinx cosx + (2 sin 2x)/(cos^2 2x)

1. UT can either be followed by an indicative or subjunctive verb 2. UT + subjunctive: a) purpose clause (negated by replacing ut with ne) b) result clause (negated by ut + non) and signalled by a sign...

1. Δx and Δp represent the uncertainty in position and the uncertainty in momentum respectively.
2. If x is known absolutely then p cannot be known at all.
3. This means that the precise p...