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Integration by Parts

I believe that to be good at integration and maths in general practice is needed. Enough practice can give the student enough knowledge to be able to solve any question. For example, integration by parts inv...
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Answered by Filipe C. • Maths tutor
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Outline the Behavioural approach to explaining phobias. (6)

The Behaviourist approach explains phobias as being a result of conditioning in relation to a phobic stimulus. According to Behaviourists such as Pavlov, most stimuli are initially neutral (we are not biolog...
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Answered by Ella C. • Psychology tutor
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Prove by induction the sum of n consecutive positive integers is of the form n(n+1)/2.

As proof by induction goes we always have to show that it works for the base case, which in this case is the very first positive integer:1. So we show that the sum of the first number(s) is equal to one whic...
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If you have 20.82g of Lithium (Molar mass = 6.34gmol^-1), how many moles of Li is it?

number of moles = mass / molar massTherefore, n=20.82g/6.34gmol -1 =3moles
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Answered by Sam H. • Chemistry tutor
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Define enthalpy of neutralisation and state standard conditions:

Enthalpy of Neutralisation: the energy change a system experiences when one mole of water is formed from the neutralisation of an acid with an alkali under standard conditions.Standard conditions: 298K, 1atm...
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Answered by Sam H. • Chemistry tutor
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