Search our library of homework questions

Top answers

All subjects

All levels

Differentiate with respect to x and write in its simpliest form, Y=(2x-3)/x^2?

Y=(2x-3)/x²

Quotient Rule: dY/dx(u/v)=(u'v-v'u)/v²

dY/dx=(2x²-2x(2x-3))/x⁴

=(6x-2x²)/x⁴(C...

Answered by Joe D. • Maths tutor

5736 Views

[FP2] Solve: 3 cosh x - 4 sinh x = 7

First write cosh and sinh as exponentials, from their respective definitions:sinh x = 1/2 (e^x - e^-x)cosh x = 1/2 (e^x + e^-x)So: 3 * 1/2 (e^x + e

Answered by William U. • Maths tutor

20414 Views

What is the difference between "ser" and "estar"?

This is a tricky one. The rhyme I learned "how you feel and where you are - that is when you use estar!" is pretty useful, but I like to remember it based on whether the state of something ca...

Answered by Sophie L. • Spanish tutor

1801 Views

How do I structure my time for the ELAT exam?

The ELAT is 90 minutes long and because essay writing depends on personal style, it does slightly depend. If you like to have more time to plan, then you could spend up to 15 minutes planning.

...

Answered by Teddy B. • ELAT tutor

3223 Views

How do I structure my essay?

I always followed a very simple structure which appeared to work very well; the introduction would include two opposing historical views (quotes from historians to support them are great but not essent...

Answered by Molly W. • History tutor

3640 Views