Wednesday

January 28, 2015

January 28, 2015

Posted by **Elom Charles** on Friday, February 17, 2012 at 10:37am.

- Mathematics -
**Steve**, Friday, February 17, 2012 at 2:18pmar = a+12

r = a/2

a^2/2 = a+12

a^2 - 2a - 24 = 0

(a-6)(a+4)

so, a=6, r=3

or, a=-4, r=-2

6, 18, 54, 162, ...

or

-4, 8, -16, 32, ...

**Answer this Question**

**Related Questions**

Maths - The second term of a GP is 12, more than the first term, given that the ...

Math Algebra - The first term of a geometric progression is more than the third ...

Maths - The 3rd term of an AP is 10 more than the first term while the fifth ...

Geometric progression - The second term of a geometric progression is 12 more ...

Mathematics-please help quick!! - The first term of the sequence is -168 and ...

Math - 3,5,-5... The first term in the sequence of #'s shown above is 3. Each ...

math - The 3rd term of a geometric progression is nine times the first term.if ...

math - The third term of a geometric progressiom is nine times the first term.if...

Mathematics-please help! - The first term of the sequence is -168 and every term...

Mathematics-please help! - The first term of the sequence is -168 and every term...