The sum of the first p terms of an A.P. ...

The sum of the first p terms of an A.P. is q and the sum of the first q terms of the same A.P. is p. Find the sum of the first (p+q) terms of the A.P.

p-q

`-(p-q)`

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ARIHANT SSC-SEQUENCE, SERIES & PROGRESSIONS-INTRODUCTORY EXERCISE 18.1

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If a,b,c be respectively the sum of first p,q,r terms of an A.P. then ...
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The sum of the first p terms of an A.P. is q and the sum of the first ...
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