Saved Bookmarks
| 1. |
s if the ph.qn &襾terms of an AP are in GP. Find the common ratio of the GP. |
|
Answer» as this is in AP 2q=p+r----eq(1) as in GP q=p.c & r=p*c2where c=common difference, putting in eq(1) 2*p.c=p+p*c2hence c^2+1-2c=0 or ( c-1)2=0 so c=1 frm(1) p-q=q-r or (p-q)/(q-r)=1=c or (q-r)/(p-q)=1=c |
|