P -6 6
1 0 2
Matrix A= -1 4 -1 and B = 1 4 1
6 3 -3
3 3 2
(a) Given AB=91, where I is a 3 x 3
identity matrix, find the values
of p and q.
(b) Hence deduce B-1.
(c) Find matrix C if CHAT+AB

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8

hope this is what you were asking for!

step-by-step explanation: