Answer Happy

(a) You should be able to answer this part of the question after studying Unit 10. The Maxima plot below shows the first six terms of a geometric sequence (sn). Find a recurrence system for this sequence, give its closed form, and describe its long-term behaviour. [4] 60 50 40 30 20 s 10 0 0 -10 -20 -30 0 2 4 6 8 10 n (b) You should be able to answer this part of the question after studying Unit 12. The Maxima graph below shows solutions of a polynomial equation, with real coefficients, in the complex plane. Find the polynomial equation, giving it in its simplest form, and explain your working. [6] 2 1 0 -1 -2 -3 -4 -3 -2 -1 0 1 2