" If "x=0.bar(7)" and "y=0.bar(23)" then rational number between "(x+y)" and "(x-y)" is "

A rational number between x and y is................

For all rational numbers x and y, x - y = y - x.

If A=({:(0,x),(y,0):}) " and " A^(3)+A=0 , then find the relation between x and y (x,y ne 0).

Assertion : One of the rational number between (1)/(5) and (1)/(4) is (9)/(2) . Reason : If x and y are any two rational numbers such that x lt y , then (1)/(2)(x+y) is a rational number between x and y such that x lt (1)/(2) (x+y) lt y .

If |bar(x)+bar(y)|=|bar(x)-bar(y)| , then

If xsqrt(2) + ysqrt(3) = 0 where x and y are rational numbers, show that x = y = 0 .

If x and y are two rational numbers such that y!=0 then the result of dividing xby is the rational lumber obtained on multiplying x by the reciprocal of y.

Find the rational number having 0.4bar23 as its expansion.

Find the rational number having 0.4bar23 as its expansion.