Question

if a ={ x:x^2 - 4 x + 3 is = zero},b={x:x^2-x-6 =0} find a X b

Answer 1

Step-by-step explanation:

a=x^2-4x+3=0

(x-3)(x-1)=0

x=1,3

b=x^2-x-6=0

(x-3)(x+2)=0

x=3, -2

a={1,3}

b={3,-2}

axb means Cartesian product pair of all points

a×b={(1,3),(1,-2),(3,3),(3,-2)}