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Please help!!! Core 1 aqa maths june 2013

hey, i am stuck on a few of the questions in the june 2013 core 1 paper. I am doing a resit so i really need to get a high grade. I am stuck on question 3d,,, 5b(ii) and 6c(ii)..
Q3.pngQ5.pngQ6.png

I also wanted to ask I am never sure whether to use the triangle, square or trapezium area whenever it comes to integration questions??
Please PLEASE help me :smile:))
(edited 10 years ago)
Reply 1
The images aren't working :/


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Reply 2
Original post by Blob :)
The images aren't working :/


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check again, I added it
Reply 4
For the first one I think it is a translation of (1)
(0)


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Reply 5
Original post by Blob :)
For the first one I think it is a translation of (1)
(0)


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no its (6) (-7) i just don't get why its -7 ?? (going down)
Reply 6


I need help with (5b)ii
Reply 7
Original post by hannahkar
I need help with (5b)ii


What is the answer on the mark scheme for 5 b 2


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Reply 8
Original post by hannahkar
no its (6) (-7) i just don't get why its -7 ?? (going down)


The centre of tho original circle is (-1,0)

What centre did you get for the circle in the question

Surely you can see why it is 6 across and 7 down
Reply 9
Original post by hannahkar
I need help with (5b)ii


In 5(a)(ii) you found the minimum value of the bracket

Surely you can multiply that by 5 and take the square root
Original post by hannahkar

I also wanted to ask I am never sure whether to use the triangle, square or trapezium area whenever it comes to integration questions??


You have the area under the curve

Shade this in the diagram

What shape is shaded in total

Find this era and subtract your shading
Reply 11
Original post by TenOfThem
The centre of tho original circle is (-1,0)

What centre did you get for the circle in the question

Surely you can see why it is 6 across and 7 down



The centre is (5, –7) for the circle
Original post by hannahkar
The centre is (5, –7) for the circle


Exactly
Reply 13
Original post by TenOfThem
You have the area under the curve

Shade this in the diagram

What shape is shaded in total

Find this era and subtract your shading


The area is already shaded but I just don't understand why and when you'd use trapezium, square or triangle area? :frown:
Original post by hannahkar
The area is already shaded (


No it isn't

I meant shade the area that you have found on the diagram

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