10th Class Mathematics Sample Paper Mathematics Sample Paper-2

  • question_answer
    If \[{{S}_{n}},\]the sum of first n terms of an A.P. is given by\[{{S}_{n}}=5{{n}^{2}}+3n\], then find its nth term.

    A) \[n2\]                

    B) \[2n-10\]

    C) \[10\,\,n2\]        

    D) \[n+2\]

    E) None of these

    Correct Answer: C


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