" 2) If "^(6)x'" is real then prove that "(x)/(x^(2)-5x+9)" lies between "(-1)/(11)" and "1

If x is real, prove that (x)/(x^(2)-5x+9) lies between 1 and (-1)/(11) .

If x is real number, then x/(x^(2)-5x+9) must lie between

if x is real,show that (x)/(x^(2)-5x+9) always lies in the interval [-(1)/(11),1]

If x be real then prove that (x-1)(x-2)+1 is always positive.

If x is real, show that the value of x/(x^2-5x+9) always lie between 1 and (-1/11)

If x is real,then x/(x^(2)-5x+9) lies between -1 and -1/11 b.1 and -1/11 c. 1and1/11d.none of these

Given that for all real x, the expression (x^(2)-2x+4)/(x^(2)+2x+4) lies between (1)/(3) and 3 the values between which the expression (9tan^(2)x+6tanx+4)/(9tan^(2)x-6tanx+4) lies are