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The arrival of an action potential at the presynaptic neurone causes voltage gated Ca2+ channels to open, allowing Ca2+ to diffuse into the synaptic knob. The increased intracellular Ca2+ concentration in...

y=k/d²
substituting:4=k/10²
4=k/100
400=k
d=nx²
substituting:24=n x 2²

24=4n
n=6
Eq1:y=400/d²
Eq2:...

The first paragraph focuses on the theme of role allocation in a specialised economy:
School is known to select and sift people for different levels of jobs meaning it's a major method of role alloca...

One way a government might try and reduce an imbalance in the current account is by using contractionary fiscal policy·        Reducing government spending and increasing taxes·        By reducing governm...

(using double angle formula)Sin^2(x)=1/2-(Cos(2x)/2)
So the Integral is 1/2(x-1/2Sin(2x))which simplifies to x/2 - 1/2Sin(x)Cos(x)