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The sum of first p,q,r terms of an A.P. are a,b,c then 

The sum of first p,q,r terms of an A.P. are a,b,c then 

The sum of first p,q,r terms of an A.P. are a,b,c then 

(a) 0

(b) 1

(c) 2

(d) 3

Sol:

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