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Solve the following complex equation: '(a + b)(2 + i) = b + 1 + (10 + 2a)i' to find values for 'a' and 'b'

The first step with this question is to expand all the brackets; this will produce the following equation: 2a + ai + 2b + bi = b + 1 + 10i + 2ai The next step is to put all the terms which contain what you'r...
SM
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Describe the roles of calcium ions, ATP and phosphocreatine in producing contraction of S (b) a muscle fibre.

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BF
Answered by Bertie F. • Biology tutor
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Find the general solution of the differential equation d^2y/dx^2 - 5*dy/dx + 4y = 2x

Solve complimentary function: Let y = e mx then, d 2 y/dx 2 - 5dy/dx + 4y = 0 m 2 e mx - 5me mx + 4e mx = 0 (substituting for y) e mx (m 2 - 5m + 4) = 0 e mx (m - 4)(m - 1) = 0 Therefore m=4 and m=1, so the ...
PM
13839 Views

What affects the boiling point of an alkane and why?

There are two ways to affect the boiling point, both of which are to do with London forces found between molecules. Firstly, the chain length. If the chain length increases, the molecules will have a larger ...
TB
Answered by Thomas B. • Chemistry tutor
25922 Views

I struggle with time management whilst doing an exam paper. How will I be able to answer every question in the time given for the exam?

The best way to improve time management is by practising past papers. These can be found on your exam board website e.g. AQA, Edexcel etc. By completing a past exam paper under timed conditions you are putti...
RP
Answered by Ruby P. • Maths tutor
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