Slide the point [math]A[/math] along the line to change the length of the line [math]OB[/math].
Let [math]\left|OA\right|=a[/math] and [math]\left|OB\right|=b.[/math] Which values of [math]a[/math] satisfy the inequality [math]\left|b-a\right|>c[/math]?[br]
[i] a < b-c [/i]or [i]a > b+c[/i]
Let [math]\left|OA\right|=a[/math], and [math]\left|OB\right|=b[/math]. Which values of [math]a[/math] satisfy the inequality |b-a|<c