terms of a series be\[5{{n}^{2}}+2n\], then its second term is [MP PET 1996]
A) 7
B) 17
C) 24
D) 42
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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