Question

How many terms are there in the AP whose first and eighth terms are -16 and -2 respectively and the sum of terms is 18.

Answer 1

Answer:

Hii

18th Jun 2009, 1:37 PM. Q1. how many terms of A.P. 9,17,25, are added to get the sum 636? Q2. if Sn=n(4- n), ... Q5 if pth , qth and rth term of an A.P. are x,y and z respectively, show that (p)y + (p-q)z=0 

Answer 2

Answer:

Step-by-step explanation:

18th Jun 2009, 1:37 PM. Q1. how many terms of A.P. 9,17,25, are added to get the sum 636? Q2. if Sn=n(4- n), ... Q5 if pth , qth and rth term of an A.P. are x,y and z respectively, show that (p)y + (p-q)z=0