Search our library of homework questions

Top answers

All subjects

All levels

Differentiate artanh(x) with respect to x

First we set y=artanh(x). Then we rearrange such that tanh(y)=x. There several approaches to find dy/dx, but the quickest is to use implicit differentiation.

The differential of tanh(y) is sech

Answered by Sam H. • Further Mathematics tutor

12086 Views

titration calculation: 35cm3 of Hydrochloric Acid reacts with 27.5cm3, 0.3mol/dm3 NaOH. What is the Concentration of the Hydrochloric Acid?

Write out what you know:

HCL - VOL: 35 --- CONC: (x) --- MOL: (x)
NaOH - VOL: 27.5 --- CONC: 0.3 --- MOL: (x)
Realise what you can work out - Mol of NaOH in ...

Answered by Ghazn K. • Chemistry tutor

4745 Views

menstrual cycle and contraceptive pills

FSH

it causes an egg to mature in an ovaryit stimulates the ovaries to release the hormone oestrogen.

Oestrogen

it stops FSH being produced - so that only one egg matures in a cycle...

Answered by Ghazn K. • Biology tutor

3307 Views

Describe briefly the role of tRNA and mRNA in the translation process

mRNA is produced from the transcription of DNA in the nucleus. Afte splicing has occured to remove non coding introns from the pre-mRNA, the mRNA leaves the nucleus via nuclear pores. Moving to a ribosome...

Answered by Harry M. • Biology tutor

14524 Views

Find the equation for the tangent to the curve y^3 + x^3 + 3x^2 + 2y + 8 = 0 at the point (2,1)

As the tangent has the same gradient as the curve at the particular point, we need to find the gradient of the curve. To find the gradient we need to differentiate. Due to there being two variables in thi...

Answered by Aphishek E. • Maths tutor

4210 Views