+123 a. Find the sixth term of a geometric sequence for which a1 = -3 and r = -2
b. Write an equation for the nth term of the geometric sequence 5, 10, 20, 40, . . .
c. Find the seventh term of a geometric sequence for which a3 = 96 and r = 2.
+37146 A a1* r^(n-1) = -3 * -2^5 = 96
B nth= 5* r^(n-1) = 5 * 2^(n-1)
c if a3 =96 and r =2 then a2 = a3/r = 48 a1 = a2/r =24 a7 = a1*r(n-1) = 24*2^6 = 1536
