Question

if a,b,c are in arithmetic progression, then a+c=​

Answer 1

Step-by-step explanation:

a+b and b+c

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Answer 2

Answer:

2b

Step-by-step explanation:

When a, b, c are in arithmetic progression

First term is t1 = a

Second term is t2 = a+d=b

Third term is t3 = a+2d = c

Now, a+c = a+(a+2d) = 2a+2d = 2(a+d) = 2b