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Cambridge Additional Mathematics 2012 Past Paper May June Paper 21 | 23

Question 1 (i) Given that (A =left(begin{array}{rr}4 & -3 \ 2 & 5end{array}right),) find the inverse matrix (A ^{-1}).(ii) Use your answer to part (i) to solve the simultaneous equations[begin{array}{l}4 x-3 y=-10 \2 x+5 y=21end{array}] Question 2 A cuboid has a square base of side ((2+sqrt{3}) cm) and a volume of ((16+9 sqrt{3}) cm ^{3}). … Read more

Function Oct/Nov 2011 Paper 13

Answer only one of the following two alternatives. EITHER A function f is such that f(x)=ln(5x10), for x>2 (i) State the range of f. (ii) Find f1(x). (iii) State the range of f1. (iv) Solve f(x)=0. A function g is such that g(x)=2xln2, for xR. … Read more