MYTUTOR SUBJECT ANSWERS

413 views

If y = (1+3x)^2, what is dy/dx?

A good approach to solve this is to use the chain rule of differentiation. The chain rule states: dy/dx= (dy/du)*(du/dx).

In this case let u = 1+3x, so y = u^2.

Then dy/du = 2u and du/dx = 3,

so dy/dx = (2u)*3 = (2(1+3x))*3 = 6+18x

Nishit B. A Level Maths tutor, GCSE Maths tutor, A Level Further Math...

10 months ago

Answered by Nishit, an A Level Maths tutor with MyTutor


Still stuck? Get one-to-one help from a personally interviewed subject specialist

263 SUBJECT SPECIALISTS

£20 /hr

Liam R.

Degree: Economics (Bachelors) - Durham University

Subjects offered:Maths

Maths

“I study Economics at Durham. I have a passion for maths and hope to share this with you! To find out more, click on my profile & book a free 15-minute meeting!”

£22 /hr

Shreya G.

Degree: Biochemistry with molecular medicine (Bachelors) - Nottingham University

Subjects offered:Maths, Biology+ 1 more

Maths
Biology
-Personal Statements-

“I am a first year undergraduate student at The University Of Nottingham, currently studying Biochemistry with molecular medicine. ”

£20 /hr

Iebad A.

Degree: Aerospace Engineering (Masters) - Sheffield University

Subjects offered:Maths, Italian

Maths
Italian

“About me: Hello, my name is Iebad and I am an aerospace engineering student at The University of Sheffield. As an engineer, maths is the key to unlock all the solutions to our problems in this field. Since the early years I had a broad...”

About the author

Nishit B.

Currently unavailable: for regular students

Degree: Engineering (Masters) - Oxford, New College University

Subjects offered:Maths, Physics+ 1 more

Maths
Physics
-Personal Statements-

“I am a second year Engineering undergraduate at the University of Oxford. I am happy to help with A-level/GCSE Maths.”

MyTutor guarantee

You may also like...

Other A Level Maths questions

How do you intergrate ln(x)?

What is the importance of the Central Limit Theorem in carrying out hypothesis tests?

Solve the inequality 4x^2​>5x-1

How do I know which method of integration to use?

View A Level Maths tutors

We use cookies to improve your site experience. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok