urgent help needed.. in 1 or 2 hours plzz help

kartik_new123

New member
Joined
Nov 21, 2012
Messages
2
Q No 1 In a certain A.P the 24th term is twice the 10th term. Prove that the 72nd term is twice the 34th term.
Q No 2 If (m+1)th term of an A.P is twice the (n+1)th term, prove that (3m+1)th term is twice the (m+n+1)th term.
Q No 3 If the nth term of the A.P 9,7,5,.... is same as the nth term of the A.P 12,12,9,...Find n.
 
Q No 1 In a certain A.P the 24th term is twice the 10th term. Prove that the 72nd term is twice the 34th term.
Q No 2 If (m+1)th term of an A.P is twice the (n+1)th term, prove that (3m+1)th term is twice the (m+n+1)th term.
Q No 3 If the nth term of the A.P 9,7,5,.... is same as the nth term of the A.P 12,12,9,...Find n.

You need to read the rules of this forum. Please read the post titled "Read before Posting" at the following URL:

http://www.freemathhelp.com/forum/th...217#post322217


We can help - we only help after you have shown your work - or ask a specific question (not a statement like "Don't know any of these")

The expression for the n th term of an AP, with first term = a1, and common difference = d is,

an = a1 + (n-1)*d

Please share your work with us indicating exactly where you are stuck - so that we may know where to begin to help you.
 
Last edited by a moderator:
Top