SATHEE: Sequence And Series Question 504

Sequence And Series Question 504

Question: If the sum of the first terms of a series be $ 5n^{2}+2n $ , then its second term is

[MP PET 1996]

Options:

A) 7

B) 17

C) 24

D) 42

Show Answer

Answer:

Correct Answer: B

Solution:

$ T_2=S_2-S_1 $ = $ 5{{(2)}^{2}}+2(2)-{5{{(1)}^{2}}+2(1)}=24-7=17 $ .

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Sequence And Series Question 504

Question: If the sum of the first terms of a series be $ 5n^{2}+2n $ , then its second term is

Options:

Answer:

Solution:

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