Edexcel IAL Core Mathematics - C12 - WMA01 - JUNE 2016

What did you get for the trapezium rule?

I got something like 14.553. I don't think I got the second part right though

I got something like 14.553. I don't think I got the second part right though

What did you get for the trapezium rule?

There are some questions I remember but couldn't do
Any ideas on the answers?

- The question with the circle with centre (a, 3). Another coordinate on the circle is P(4, -3). Find a

- The logarithm question to convert log 2 y = 5 - log 2 x (the 2's should be small) into y^2 = k / x
- How to solve the logarithm equation simultaneously with another equation I can't remember

- How to find/prove r = 2 for the circle segment

- The answer in the Sum of n question Where a = 97 and d = -3. I think I got 56

Yea that's what I got.

Was the second part of that question somewhere around 132?
(not sure if it was this question)

what did u get for (A) in centre of circle

im 100% sure it was 27/64 in the last one.
it was area under line- area under curve.
calculation was like this:integ(limit 2 to .5)[-.25x+.5]-integ(limit 2 to .5)[x^3-3x^2+2x]

yup that was the answer.. I integrated from 1 to 0.5 as those were the points the curve was crossing the x-axis.. then subtracted area of the triangle from the integrated part

My equation for the circle was (x-a)^2+y^2=a^2. Since the point (4,-3) was a coordinate on the circle, I plugged in the numbers into my equation in order to get a.
(4-a)^2+9=a^2.
16-8a+9=0.
a=25/8