wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

An alternate way of representing the sum of n terms of an arithmetic progression is in terms of the first term a and the last term l is?

A
Sn=n/2[al].
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Sn=n[a+l].
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Sn=n/2[2a+l].
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Sn=n/2[a+l].
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is A Sn=n/2[a+l].
The sum of n terms in an arithmetic progression can also be found using just the first and the last term of the progression using the formula Sn=n/2[a+l] where a is the first term and l is the last term. Thus the correct answer is d.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Sum of n Terms of an AP
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon