Question

Which of the following are APs ? If they form an AP, find the common differenced and
write three more terms.
a, 2a, 3a, 4a​

Answer 1

Answer:

common difference is 1

three more years are 5a, 6a, 7a

hope this will help you

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Answer 2

Answer:

Let a, 2a, 3a, 4a in AP

d= a2-a1

=2a-a

=a

therefore, a5= a+4d = a+4(a) = 5a

a6= a+5d= a+5(a) = 6a

a7= a+6d= a+6(a) = 7a