Integration 7 • Areas between Curves • P1 Ex13G • 🚀

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Edexcel Pure Year 1

Thurs 16/1/20

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For the last example, 14:37 I found the area of the triangle under y=2x by taking the limits 5 and 0 and integrating 2x which gives x^2 then subbing in 5 - the upper limit, to get 25. Then I subtracted the other area as you did. Weirdly I found this quicker bc I always second guess my calculations of areas.

summa

At 12:10, wouldn’t it be you integrate x(x-3) - 2x cause it was like that in the other questions/the note, how would you know what way round it goes?

toxins

Hi, could you tell me what software and device you are using to create these vids, what are u drawing on because it sounds so sleek and nice!

azlid

Thank you for the amazing explanation, as always, and for keeping up my enthusiasm and interest this far 🤗

acelx

hi sir, for the last qs how did u know you had to integrate for the small area triangle and just find normal area of the large triangle?
Also shouldn't I get the same answer if II integrate and find area normally because I cant seem to get the same answers when I do that?

TaiwoIbirinde

for the last question i got 49/3 and used the prefered method instead its just the areas thats tricky which one is negative when adding

justabritishsimracer

Hi sir could you please tell us the anwser to the exam question on the presentation excedel C2 May 2012 Q5 thanks

irfan

at 19:50, would you need to put units^2 for the answer?

goldfinchui

why was it x(x-3) and not 2x when finding the area thing

upcomingrays

Hi sir, how would you do the 2nd questions without using your method? I like doing them the longer way.

AppleApple-uxbe

in an exam can't i just use my calculator to do it all?

baqirshah

Integration 7 • Areas between Curves • P1 Ex13G • 🚀

Integration 7 • Areas between Curves • P1 Ex13G • 🚀

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