Saved Bookmarks
| 1. |
5,(2k-3),9 is an a.p ,find the value of k |
|
Answer» 5 Indirectly mera answer right he sorry by mistake used 2k - 9 in place of 2k - 3.So, solve same by same method. 5, (2k -9), 9 is an apd = (2k -9) - 5 = 2k-9 - 5 = 2k - 14 .... (i)also d = 9 - (2k-9) = 9 - 2k - 9 = - 2k ...... (ii)From (i) and (ii)2k - 14 = -2k2k + 2k = 144k = 14k = 14/4 = 7/2 K=5 |
|