On the set `QQ` of all rational number the operation `**` which is both associative and commutative is given by `a ** b =`

On the set Q of all rational numbers the operation * which is both associative and commutative is given by a * b=

On the set Q of all rational numbers if a binary operation * is defined by a*b= (a b)/5 , prove that * is associative on Qdot

On the set Q of all rational numbers if a binary operation * is defined by a*b=(ab)/(5), prove that * is associative on Q.

On Q, the set of all rational numbers a binary operation * is defined by a*b=(a+b)/(2) Show that * is not associative on Q.

Let ** be a binary operation on the set Q of rational numbers as follows a**b=(a-b)^2 . Is the binary operation commutative and associative ?

Let ** be a binary operation on the set Q of rational numbers as follows a**b=a^2+b^2 . Is the binary operation commutative and associative ?

Let ** be a binary operation on the set Q of rational numbers as follows a**b=a+ab . Is the binary operation commutative and associative ?

On Q , the set of all rational numbers a binary operation * is defined by a*b= (a+b)/2 . Show that * is not associative on Qdot

Let ** be a binary operation on the set Q of rational numbers as follows : a "*" b = a -b Find which of the binary operations are commutative and which are associative.

Let ** be a binary operation on the set Q of rational numbers as follows : a "*" b = a+ab Find which of the binary operations are commutative and which are associative.