Question

D) The last term of the series 1, -3, 9, -27 up to
7 terms is
c) 927 d) none
a) 297
b) 729​

Answer 1

Answer:

The first through seventh terms are:

(1) 1

(2) 1 * -3 = -3

(3) -3 * -3 = 9

(4) 9 * -3 = -27

(5) -27 * -3 = 81

(6) 81 * -3 = -243

(7) -243 * -3 = 729

Hence, option b. 729 is the correct answer.