If xy and yx are rational numbers, then which of the following options is correct?
x ≠ 0, y can be 0
x can be 0, y ≠ 0
x ≠ 0, y ≠ 0
both x and y can be 0
A rational number cannot have its denominator as 0. As xy and yx are rational numbers, so x≠0,y≠0.
if xy > 0, then
The Equation y = - 5, in two variables can be written in the form of ax + by + c = 0 as
Let L1 be a straight line passing through the origin and L2 be the straight line x + y=1. If the intercepts made by the circles x2+y2−x+3y=0 on L1 and L2 are equal then which of the following equations can represent L1?
The coordinates of a point are (x, y). If the point lies in the 2nd quadrant, then?