Saved Bookmarks
| 1. |
If the 9" term of an A.P.bezero, then the ratio of its 29" and 19" termis |
|
Answer» Step-by-step explanation: t9=a+8d a+8d=0....(1) t19=a+18d i.e. t19=a+8d+10d from eq(1) t19=0+10d=10d...(2) t29=a+28d t29=a+8d+20d from eq(1) t29=0+20d=20d...(3) t19/t29=10d/20d...frome eqs(2) and (3) t19:t29=1:2 The ratio of t19 and t29 is 1:2 . |
|