Search our library of homework questions

Top answers

All subjects

All levels

Using partial fractions find the integral of (15-17x)/((2+x) (1-3x)^2 )

First seperate the function into the form A/(2+x) + B/(1-3x) + C/(1-3x)² . Find A B and C by equating the intergral to {A(1-3x)²+B(1-3x)(2+x) +C(2+x)}/(2+x)(1-3x)²

Answered by Sean B. • Maths tutor

4629 Views

How do you convert between different SI units, for example, nmol to mmol?

Convert 560nmol to mmol. 1) nmol – 10^-9 --> mmol – 10^-3 2) L <-- S (Large goes on the left) 3) Bounce decimal point to the l...

Answered by Jennifer P. • Chemistry tutor

3633 Views

I don't understand when to use reported speech. Can you explain it?

Reported speech or indirect speech is sometimes used in German to convey what someone else has said. It is not commonly used in spoken language, but instead mainly in journalism, in order to distance the ...

Answered by Matt A. • German tutor

2047 Views

Compare two of the set works for A level, focussing on instrumentation and structure.

Answer depends on set works. Look at instrumentation for each - compare to each other, and to standard orchestrations of the time. References to how orchestras developed, or in case of modern music how en...

Answered by Penny K. • Music tutor

3268 Views

Some babies are born with a hole between the right and the left ventricles. These babies are unable to get enough oxygen to their tissues. Suggest why. (2)

A hole between the right and left ventricle means that blood would shunt from the left to the right ventricle as the pressure in the left ventricle is higher than in the right ventricle, leading to the mi...

Answered by Sparsh S. • Biology tutor

13865 Views