Question

if the first term of AP is 7 and the 7th term is 19 then the common difference of the AP is:
a)4
b) 3
c) 1
c) 2​

Answer 1

Step-by-step explanation:

a=7

a7=19

a+6d=19

7+6d=19

6d=19-7

d=12/6

d=2

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Answer 2

Answer:

2 is a right answer because I solve the question