Thursday
March 23, 2017

Post a New Question

Posted by on Tuesday, February 28, 2012 at 10:53am.

if the seventh term of an AP is zero,prove that its 27th term is five times its eleventh term of class 10

  • maths - , Tuesday, February 28, 2012 at 12:03pm

    T7 = a+6d
    T11 = a+10d
    T27 = a+26d

    a+6d = 0
    a = -6d

    T27 = -6d+26d = 20d
    T11 = -6d+10d = 4d

  • maths - , Saturday, November 5, 2016 at 8:47am

    i donno

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question