Mathematics · Oct / Nov 2022 · Paper 42 · Question 11
0580
As printed in the paper
Show the answer and mark scheme
11(a)[3]
2.5 and – 2.5 oe [3]
M2 for 1681m2 = 42025 oe 4
or M1 for (9m)2 + (40m)2 oe
11(b)(i)[3]
c – a final answer [1]
3 4 a final answer [1]
c + 3 4 a final answer [1]
FT c + their (b)(i)(b), must be a vector in terms of a and/or c in its simplest form
11(b)(ii)[2]
a + 4 3 c oe [2]
B1 for [ BQ = ] 1 AQ = ] 4 3 c or [ 3 c
or M1 for a correct route or for answer a + kc oe, where k > 1
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