Top answers

All subjects
All levels

For y=x/(x+4)^0.5, solve dy/dx

As x is present as both numerator and denominator (top & bottom), we're going to use the quotient rule to solve this. The quotient rule is as follows:For y=f(x)/g(x), dy/dx=(f'(x).g(x)-f(x).g'(x)...

TM
Answered by Thomas M. Maths tutor
2937 Views

Find the equation of the line tangential to the function f(x) = x^2+ 1/ (x+3) + 1/(x^4) at x =2

Differentiate the function to find the gradient at any point: df/dx = 2x - 1/(x+3)^2 - 4/(x^5)insert the value of 2 into f(x) and df/dx --> df/dx = 3.835, f(2) = 4.2625create the equation of the line b...

EF
Answered by Elliot F. Maths tutor
2850 Views

What happens during the light-dependent reaction?

During the light dependent reaction, chlorophyll in the chloroplasts within a plant cell will absorb light energy, this will then excite electrons and an electron will be removed from the chlorophyll, onc...

DV
Answered by Deo V. Biology tutor
3844 Views

What are the two roots for the equation x^2 + 7x + 10 = 0

Start by looking for multiples of 10. You have the pairs 2 & 5 and 1 & 10. Both signs are positive in the original equation so it will either be positive 2 & 5 or positive 1 & 10. Clearly ...

ER
Answered by Edward R. Maths tutor
2688 Views

How do you answer a GCSE history exam question on the ‘usefulness’ of sources?

This question wants you to use both provenance and your own knowledge to assess the contents of sources. When bringing in your own knowledge, try to be as specific as you would be in any other essay. If t...

AB
Answered by Amy B. History tutor
5677 Views

We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences