(1,4),(4,1)times(4,4)

If A={1,2},B={3,4}andC={4,5,6} Then A xx B={1,2}xx{3,4}={(1,3),(1,4),(2,3),(2,4)}

1+(1)/(4)+(1times3)/(4times8)+(1times3times5)/(4times8times12)=

[(1)/(4)+(1times3)/(4times8)+(1times3times5)/(4times8times12)]=

A = {1, 2, 3, 4} and R = {(1, 1), (1,3), (2, 2), (3, 1),(3, 4),(3,3),(4, 3), (4,4) } is a relation on A xx A , then which one of the following is correct?

((4)/(9))^(-2)times((1)/(4))^(-2)times(1)/(3^(-2))times((17)/(18))^(0)

((-4)/(3))times(1)/(2)+((-4)/(3))times((-7)/(5))

Evaluate : (- (-1) times (-5 ) ) / ( (-1 ) times ( -4 ))

Evaluate : (-3)^2 times ( 1/3 )^5 times (1/2 )^4 times (-4 )^2

If A= {1, 2, 3}, B= {3, 4} and C= {4, 5, 6}, then (A xx B) uu (A xx C) = {(1, 3), (1,4), (1,5), (1,6), (2,3), (2,4), (2,5), (2,6), (3,3), (3,4), (3,5),(3,6)}