Answer:
The terms are 2, 6 and 12
The sum is 20
Step-by-step explanation:
n n + 1 n(n+1)-- ------- ---------1 2 1 x 2 = 22 3 2 x 3 = 63 4 3 x 4 = 12The terms are 2, 6 and 12The sum is 2 + 6 + 12 = 20
