If `x in R ,` find the minimum value of the expression `3^x+3^(1-x)dot`

The minimum value of the expression x^(2)+2x+3 is

Find the minimum value of the expression (1)/(5+4cos x)

The minimum value of the expression 3x+ 3^(1-x) , x in R , is :

If x in R - {0} then minimum possible value of the expression (1)/(7)[(3x^(2)+(4)/(3x^(2))+1)^(2)-2(3x^(2)+(4)/(3x^(2)))+4]

if X is real,then the maximum and minimum values of the expression (x^(2)-3x+4)/(x^(2)+3x+4) will be

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

If x is real, the maximum and minimum values of expression (x^(2)+14x+9)/(x^(2)+2x+3) will be