1:21-12-:3times2

Simplify: 21-12-:3times2

21-12-:3xx2

State true of false. If the statements are correct, then state the property used. 12 times (11+21)=(12 times 11)+(12 times 21)

If sum_(k=1)^(12)12k^(12)C_(k)^(11)C_(k-1) is equal to (12times21times19times)/(11!)times2^(12)times P then P is

If sum_(k=1)^(12)12kquad 12C_(k)^quad 11C_(k-1) is equal to (12times21times19times......3)/(11!)times2^(12)times P then P is

Simplify ((p^(2)-10p+21)/(p-7)times(p^(2)+p-12)/((p-3)^(2)))

Find the rank of the matrix [[2,1,-1,2],[1,3,2,-3],[-1,2,1,-1],[2,-3,-1,4]]

Find the rank of matrix [ [1,1,-3,2],[2,-1,2,-3],[3,-2,1,-4],[-4,1,-3,1] ]

If A=[{:(1,2),(2,1):}] then show that A^(2)-3I=2A .