TopBottom

ABOUT ME



Click on more
SUBSCRIBE

Enter your email address:

Delivered by FeedBurner



VIDEO

Announcement: wanna exchange links? contact me at ravikrak@yahoo.com.

Arithmatic Progression

Posted by Ravi Kumar at Friday, July 10, 2009
Share this post:
Ma.gnolia DiggIt! Del.icio.us Yahoo Furl Technorati Reddit

Quantities are said to be in arithmetic progression(A.P) when they increase or decrease by a common difference to get the next or the previous term respectively.

An arithmetic progression be represented by a, a + d, a+ 2d, ...., a + (n-1)d, where a is the first term; n is the number of terms in the progression and d is the common difference.
In an Arithmetic progression, n'th term = a + (n-1)d

Sum of n terms = (n/2) * [2a + (n-1)d]
If three numbers are in arithmetic progression, the middle number is called the Arithmetic mean.
Arithmetic Mean = (a+b+c)/3 where a,b and c are in Arithmetic Progression

Arithmetic Mean of 'n' terms in Arithmetic progression =
(first term + last term)/2
(or)
1/2{2a + (n-1)d}

Labels:

0 comments:

Post a Comment