Login

Search the forums now!

Welcome, Guest. Please login or register.

April 19, 2024, 03:43:38 am
Pages: [1]   Go Down

Author Topic: Area by integration  (Read 1498 times)  Share 

0 Members and 1 Guest are viewing this topic.

2020hsc

  • Adventurer
  • *
  • Posts: 19
  • Respect: 0
Area by integration
« on: March 18, 2020, 03:02:56 pm »
0
Heyyy,

Just need some help on finding the area of the below by integration??
Logged

DrDusk

  • NSW MVP - 2019
  • Forum Leader
  • ****
  • Posts: 504
  • Respect: +130
Re: Area by integration
« Reply #1 on: March 18, 2020, 03:52:46 pm »
-1
Quote from: 2020hsc on March 18, 2020, 03:02:56 pm
Heyyy,

Just need some help on finding the area of the below by integration??
I just see an integral which is a standard integral found on the formula sheet. I don't see any reference to an 'area' question.
Logged

2020hsc

  • Adventurer
  • *
  • Posts: 19
  • Respect: 0
Re: Area by integration
« Reply #2 on: March 18, 2020, 04:20:27 pm »
0
Quote from: DrDusk on March 18, 2020, 03:52:46 pm
I just see an integral which is a standard integral found on the formula sheet. I don't see any reference to an 'area' question.

Could you help me how you would go about solving it anyhow?
Logged

SS1314

  • Trendsetter
  • **
  • Posts: 120
  • Respect: +18
Re: Area by integration
« Reply #3 on: March 18, 2020, 05:04:27 pm »
+1
Quote from: 2020hsc on March 18, 2020, 04:20:27 pm
Could you help me how you would go about solving it anyhow?

To solve this integral and find the SIGNED area, you have to use a technique called the 'reverse' chain rule (see attached image)

So first you would basically take the 7 out of the integral, then use the formula (make sure not to just memorise it but also be able to connect it with the actual chain rule formula) and then do the normal definite integral substitution.

Hope this helps :)

Logged
2021: English, Environmental Science, Chemistry, Physics [50]

Offering 2022 head start classes (PM for details)

2020hsc

  • Adventurer
  • *
  • Posts: 19
  • Respect: 0
Re: Area by integration
« Reply #4 on: March 18, 2020, 09:15:37 pm »
0
Quote from: jaysmith1133 on March 18, 2020, 05:04:27 pm
To solve this integral and find the SIGNED area, you have to use a technique called the 'reverse' chain rule (see attached image)

So first you would basically take the 7 out of the integral, then use the formula (make sure not to just memorise it but also be able to connect it with the actual chain rule formula) and then do the normal definite integral substitution.

Hope this helps :)

Ok yep got it. Makes it easy using that formula ;)
Thanks so much!
Logged

SS1314

  • Trendsetter
  • **
  • Posts: 120
  • Respect: +18
Re: Area by integration
« Reply #5 on: March 19, 2020, 07:48:49 am »
+1
Quote from: 2020hsc on March 18, 2020, 09:15:37 pm
Ok yep got it. Makes it easy using that formula ;)
Thanks so much!

No problem  ;D
Logged
2021: English, Environmental Science, Chemistry, Physics [50]

Offering 2022 head start classes (PM for details)

Pages: [1]   Go Up