" For all real values of "x," the maximum value of the expression "(x)/(x^(2)-5x+9)" is- "

For all real value of x, the maximum value of the expression (x)/(x^(2)-5x+9) is 1( b) 45(c)90 (d) None of these

For all real values of x, the maximum value of the expression 3-5x-2x^(2) is

For all real value of x , the maximum value of the expression x/(x^2-5x+9) is 1 (b) 45 (c) 90 (d) None of these

For all real values of x, the minimum value of the quadratic expression x^(2)-3x+3 is

For all real values of x, the maximum value of (1-x+x^(2))/(1+x+x^(2)) is :

What is the maximum value of the expression 1/(x^2 + 5x + 10) ?

For the real values of x, the maximum value of 7+10x-5x^(2) is