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Further Mathematics
A Level

Find all square roots of the number 3 + 4i.

To start we need to set up the equation described by the question. Our answers should be in the form a + bi (where a and b are real), and since any answers are the root of 3 + 4i we can write down the fol...

3017 Views

Find the volume of revolution formed by rotating the curve y = sinx 2pie around the x- axis

To solve this problem we need a formula. Integral of y2dx multiplied by pie. First we square the questions of the curve we are given (sinx)2 . Next we apply double angle formula to r...

AM
2356 Views

Explain the process of using de Moivre's Theorem to find a trigonometric identity. For example, express tan(3x) in terms of sin(x) and cos(x).

  1. Identify de Moivre's Theorem: (cos(x) + isin(x))n = cos(nx) + isin(nx) 2) Deduce the correct value of n for the given problem. In this e...
OL
3320 Views

For a homogeneous second order differential equation, why does a complex conjugate pair solution (m+in and m-in) to the auxiliary equation result in the complementary function y(x)=e^(mx)(Acos(nx)+Bisin(nx)), where i represents √(-1).

For a second order differential equation, our auxiliary equation, am2+bm+c=0, has two roots. Let's denote these roots as A and B. Note that A and B can be the same if there is a repeated root, ...

JB
2277 Views

State the conditions by which a Poisson distribution model may be suitable for a given random variable X.

The events recorded by X occur randomly, independently, singly in space and time and at a constant average rate (an average (mean) rate proportional to the length of the interval).

KC
1772 Views

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