2. `| [1 ,1 ,1 ],[4 ,3 ,2], [4^(2) ,3^(2), 2^(2)] |` is equal to

2^(1/2)*4^(3/4) is equal to

2/3-1/4 is equal to

(1)/(2)+(2)/(5)+(3)/(4) is equal to

If A=[(1,2),(3,4)] then A^(-1) is equal to

If a _(1) , a _(2), a _(3),... are in AP, then the value of |{:(a _(1), a _(2) , 1), ( a _(2), a _(3),1), (a _(3), a _(4), 1):}| is equal to

If 2a - (1)/(2a) = 3, then 16 a ^(4) + (1)/(16 a ^(4)) is equal to

A=[{:(1,2,2),(2,1,2),(2,2,1):}] , then A^(3) - 4A^(2) -6A is equal to

If A=[[4,1],[2,3]] ,then |A| is equal to