A ................... is an arrangement of numbers in a definite order
the slope of the line parallel x axis is
the equation of x- axis is
the nth term of arithmetic progression a, a+d,a+2d,............ is given by
who is the father of modren theory of sets?
the slope of y axis is
the equation of y axis is
if the discriminant b^2 - 4ac of a quadratic equation is equal to 0 then