If `Delta = |{:( 5,3,8),(2,0,1),(1,2,3):}|,` wtire the minor of the element `a _(23).`

Is the relation R={(1,2),(1,3),(2,3),(3,2)} a function, defined on the set {1,2,3} ?

The vertices of Delta ABC areA(2,3),B(4,-1)and C(1,2),Find the length of the perpendicular AD on BC.

Solve for x : |(2+x,3,1),(3,1+x,2),(1,2,3+x)|=0

Solve for x : |(x+1,3,5),(2,x+2,5),(2,3,x+4)|=0

If A=[{:(-2,3),(1,2):}] and B=[{:(-1,0),(1,2):}] , then find (A+2B)' .

The absence of the students of class x for a continuous period of 15 days is as below:2,3,5,0,1,8,2,10,7,4,2,9,11,3,1 Find the median of the above data.

A and B are two sets such that (A xx B) consists of 6 elements. If three elements-of (Axx B) are (1, 3), (2, 5) and (3, 3), find the remaining elements of (A xx B) .

If B uu {1, 2} = {1, 2, 3, 5, 7) , determine B having minimum number of elements.