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Prove that the squared root of 2 is an irrational number

Let's start by assuming that the squared root of 2 is a rational number and will prove it is irrational by contradiction.If srqt(2) is rational then it can be represented by an irreducible fraction. Let this...
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Answered by Raul N. • Maths tutor
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What contribution does the function and role of the family have to capitalism?

One function of the family which may serve capitalism is the maintenance of middle-class wealth through inheritance, and the passing on of middle class ideas, attitudes, norms and values. Inheritance and the...
Answered by • Sociology tutor
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The diagram below shows a spirometer trace of an athlete at rest. Complete the table to identify the type of lung volumes A,B and C show in the diagram.

A= Tidal Volume B= Expiratory Reserve Volume C= Residual Volume
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Describe and explain the shape and bond angle of ammonia

So firstly, we need to work out the basic shape of the molecule which we can do by drawing the lewis structure (dot and cross diagram) and counting the number of charge clouds around the central atom. In the...
Answered by • Chemistry tutor
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prove that lnx differentiated is 1/x

let y = lnx therefore e^y = x then differentiating both sides we get: dy/dx (e^y) = 1 dy/dx = 1/(e^y) and as e^y = x dy/dx = 1/x when y = lnx
Answered by • Maths tutor
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