Question

Determine the sum of first 100 terms of given A.P. 12,14,16,18,20.​

Answer 1

Answer:

see the attachment for the process

Answer 2

Answer:

Step-by-step explanation:

an=a+(n-1)d

a=12,d=12-14=2,an=100

an=a+(n-1)d

a100=12+(n-1)2

a100=12+2n-2

a100=10+2n //