The sum of the first n natural numbers, S = 1 + 2 + 3 + first n natural numbers is 171, determine the value of n. + n, is given by S = zn(n + 1). If the sum of the ...

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Q: The residues of * ƒ(z) = O 4/9,-4/9 O-4/9, 4/9 O 4/7,-4/7 4z (z − 1)(z + 2)² -4/9, -4/9 O 4/9.4/9

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A: Hence option (b) is correct.

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Q: The formula for calculating the sum of all natural integers from 1 to n is well-known: n² Sn…

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Q: The sum of n,2n,3n terms of an AP are S1,S2,S3 respectively ,Prove that S3=3(S2-S1)

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