Year 12s: what will be the first way you research your future options? >>

Year 12s: what will be the first way you research your future options? >>

Year 12s: what will be the first way you research your future options? >>

Integration Q

Find the area between the curves y=(x-4)(3x-1) and y=(4-x)(1+x)

I worked out the points of intersection for the two curves to be (0,4) and (4,0)

I then subtracted one function from the other and integrated to get -4/3x^3-5x^2

I worked out the area using the points of intersection above, 0 and 4. Is this method correct? Or should I approach this a different way?

Thanks

Study Forum Helper

Right method. Check your subtraction.

(edited 12 years ago)

That is the correct method

Darn those extra 3 words slowed me down :frown:

:frown:

What do you mean by subtracted one function from the other? I would integrate both for the given range and find the difference for the answer.

Study Forum Helper

Original post by bmqib

What do you mean by subtracted one function from the other? I would integrate both for the given range and find the difference for the answer.

It is a slightly more efficient way to do the same thing.

OP

Original post by Mr M

Right method. Check your subtraction.

Thank you, I'm there now

Quick Reply

Latest

Trending

Trending

Articles for you

Students react after A-level Maths Paper 3 on 20 June

Students react after A-level Maths Paper 3 on 20 June

What is an LLM and how could it benefit your career?

What is an LLM and how could it benefit your career?

Powerful questions business students forget to ask their career advisers

Powerful questions business students forget to ask their career advisers

Why I chose a law degree and what studying law was like

Why I chose a law degree and what studying law was like