Question

please answer this question​

Answer 1

Answer:

It's A part 2b = a+c

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Answer 2

Answer:

A) 2b = a + c

Any term in AP is of the form a , a + d , a + 2d

where a = a , b = a + d and c = a + 2d

Now

A) 2b = a + c

2( a + d ) = a + a + 2d

2a + 2d = 2a + 2d

L.H.S = R.H.S

Result is true therefore A) 2b = a + c is answer .