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Solve 29cosh x – 3cosh 2x = 38 for x, giving answers in terms of natural logarithms

Firstly, we need the equation to be in terms of one cosh argument if possible, which can be done by the identity cosh 2x = 2cosh2x - 1. Upon substitution and simplification we get 6cosh2

JC
Answered by Jacob C. • Maths tutor
4809 Views

Describe how ions, water and sugar are obtained and transported through plants. In your answer you should refer to materials moving upwards and downwards in a plant. (6 marks)

Since this is a 6 marker, it is important for you to firstly express yourself coherently, and secondly write the 'key words' that examiners look for. The question is referring to the transport pro...

ZI
Answered by Zahra I. • Biology tutor
8314 Views

Balance the following equation for the formation of magnesium chloride: Mg + HCl --> MgCl2 + H

Mg + 2HCl --> MgCl2 + H2
There are two chlorines in magnesium chloride so you put a two in front of the hydrochloric acid. This means that you need to put a 2 aft...

HG
Answered by Helen G. • Chemistry tutor
4074 Views

What is Ionic bonding?

Ionic bonding is bonding between a metal and a non-metal. This happens due to a transferal of electrons. For example a metal from group 2 such as Magnesium bonding to a non-metal from gro...

BB
Answered by Bobby B. • Chemistry tutor
2326 Views

Mitosis is important in the life of a multi-cellular organism. Explain why and how mitosis works.

Mitosis allows for growth and development of a living organism. The genetic material inside each cell is doubled as the chromosomes are doubled. The chromosomes line up in the centre of the cell and are p...

HG
Answered by Helen G. • Biology tutor
3072 Views

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