Post a New Question

Maths

posted by on .

A geometric progression has a third term of 20 band sum to infinity which is three times the first term. find the first term.

  • Maths - ,

    B3=20
    The sum=B1/(1-q)=3*B1 =>q=2/3
    B3=B1*q^2
    20=B1*4/9 =>B1=45

  • Maths - ,

    =90

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question