Top answers

Why have UK citizens become disillusioned with politicians and politics in general since the 1940s?

There are two main explanations for this trend: The 'Demand Side' explanation suggests that people are less engaged with politics because of the citizens themselves; in other words it is not the fault of pol...
HB
Answered by Hubert B. • Politics tutor
3845 Views

Find the turning point of the function y=f(x)=x^2+4x+4 and state wether it is a minimum or maximum value.

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 fi...
BA
Answered by Basim A. • Maths tutor
13927 Views

Differentiate arctan(x) with respect to x. Leave your answer in terms of x

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. To ...
BC
Answered by Benedict C. • Maths tutor
5494 Views

Differentiate with respect to x: 3 sin^2 x + sec 2x

6 sinx cosx + (2 sin 2x)/(cos^2 2x)
HM
Answered by Hugo M. • Maths tutor
11663 Views

The Heisenberg Uncertainty principle states that ΔxΔp > h/4π. What is represented by the terms Δx, and Δp? What can we say about p if the precise value of x is known? What does this mean for experimental results.

Δx and Δp represent the uncertainty in position and the uncertainty in momentum respectively. If x is known absolutely then p cannot be known at all. This means that the precise position and momentum of a pa...
DH
Answered by Daniel H. • Physics tutor
14627 Views