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 `(9.3^(2x)+6.3^x+4)/(9.3^(2x)-6.3^x+4)` lies are

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

Show that the expression (x^2-3x+4)/(x^2+3x+4) lies between 1/7 and 7 for real values of x.

Show that the expression (x^2-3x+4)/(x^2+3x+4) lies between 1/7 and 7 for real values of x.

If x is real, then the value of the expression (x^2+14 x+9)/(x^2+2x+3) lies between

If x is real, then the value of the expression (x^2+14 x+9)/(x^2+2x+3) lies between

Factorise the expressions- 3x^(4)+6x^(3)y+9x^(2)Z