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More and more universities are turning to dual-subject programmes to attract students to their institutions. But is goes further than that, universities are realising that most of today's world issues nee...

First, draw the graph of time against voltage for a typical action potential and label with points 1-8 (see whiteboard). 1. at rest, the membrane is polarised at -60mv (this is the potential inside the ce...

As we are looking for the horizontal displacement first we look at horizontal motion. We know that the horizontal velocity is 15ms^-1 but we dont know the time so we can't work out the horizontal displace...

d/dx(tan^2(x)) is not a known differential, and therefore requires a substitution to calculate it using simpler known differentials.

Using the identity sin^2(x) + cos^2(x) = 1, the equation can be ...

We have, from the formula book, sin⁡(A±B)=sinAcosB±cosAsinB Using A=B=θ, we have sinθ+θ=sinθcosθ+cosθsinθ Which we can simplify to sin2θ=2sinθcosθ as required. We can t...