STD 6 MATHS CH 14 SVADHYAY 14.2

5 6 14 45 ?

Find the mode of the data : 14, 6, 9, 15, 14, 9, 21, 21, 25, 21, 27, 29, 21, 8, 6, 15, 25, 14, 21, 9, 21, 25, 27, 29, 6, 14, 21, 21, 27, 25, 27, 9, 15, 14, 9.

6 14 39 160 795 ?

The present activity of the hair of Egyption mummy is 1.75 dpm t_(1//2) of ._(6)^(14)C is 5770 year and disintegration rate of fresh smaple of C^(14) is 14 dpm . Find out age of mummy.

If A=[(1, 2,-1),(-1, 1, 2),( 2,-1, 1)] , then det(a d j\ (a d j\ A)) is 14^4 (b) 14^3 (c) 14^2 (d) 14

14 8 6 6 7 ?