Multiple Choice Question (MCQ)

What is the 11th term of the sequence: m-2n,m-n,m,...?

  1. ×

    m+n

  2. ×

    m+6n

  3. m+8n

  4. ×

    m+11n

Collected in the board: Arithmetic sequence

Steven Zheng Steven Zheng posted 2 weeks ago


Answer

  1. From the given sequence, there observed the series is an arithmetic sequence , in which a_1=m-2n, d=n.

    Using the formula for general terms of an arithmetic sequence,

    a_n=a_1+(n-1)d

    a_{11}=m-2n+10n

    Therefore, a_{11}=m+8n

Steven Zheng Steven Zheng posted 2 weeks ago

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