Archive
21st of September 2015
Mathematics
Q:

find the sum of 31 terms of an A.P. whose nth term is given by 3 + 2 /3 n.

Nisha_vini29 - CBSE - Class X

Monday, September 21, 2015 at 14:37:PM

A:

31 s t space t e r m space o f space t h e space A. P. space i s space o b t a i n e d space b y space s u b s t i t u t i n g space n equals 31 space i n space t h e space n t h space t e r m. 3 plus 2 over 3 cross times 31 equals 3 plus 62 over 3 equals 71 over 3

Monday, September 21, 2015 at 18:16:PM