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Firstly set 2sinhx+3coshx=5Now using the exponential definitions of sinhx and coshx rewrite the equation to give:2(1/2(e^x-e^-x))+3(1/2(e^x+e^-x))=5Simplify the equation by expanding out the brackets, multip...

Induction is an incredibly powerful form of proof. As such, it is essential to be able to call upon such a tool if you want to study any higher form of mathematics. The basic structure of the method is as fo...

People doing mathematics at A-Level will be familiar with the concept of using x and y coordinates in the cartesian coordinate system. But introducing the idea of the polar coordinate system can be confusing...

First we must consider for which values of x the equation: 3/(x+3) = (x-4)/x is undefined. In this case, x=-3, and x=0. Now we must consider each of the cases, x<-3, -3<x<0, 0<x Case 1 (x<-3):...

To find power we are going to need the equation: P = F v Where P is power, F is force and v is velocity Since the car is travelling at a constant speed up the slope, we know that velocity, v is positive 20 m...