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Q Q.3 (c) If S1,S2,S3, be respectively the sum of n,2n,3n terms of an A.P. prove that S3=3(S2-S1)

bhumika    19th November, 2010 Hits: 726    0 Comment(s)    Check Answers         Solve it

Q Q.3 (b) Find the sum  of all integers from 500 to 1000 are exactly divisible by 13 

bhumika    19th November, 2010 Hits: 718    0 Comment(s)    Check Answers         Solve it








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