If `(x^2+a x+3)//(x^2+x+a)` takes all real values for possible real values of `x ,` then a.`4a^2+39<0` b. `4a^5+39 >-0` c. `ageq1/4` d. `a<1/4`

If (x^(2)+ax+3)/(x^(2)+x+a) , takes all real values for possible real values of x, then

if (x^(2)-x)/(1-ax) attains all real values (x in R) then possible value of a are

If x in R then (x^(2)+2x+a)/(x^(2)+4x+3a) can take all real values if

If x is real then (x^(2)-x+c)/(x^(2)+x+2c) can take all real values if

7.Find the greatest value of 3+5x-2x^(2) for all real values of x .

Let f(x)=ax^(2)+bx+a,b,c in R. If f(x) takes real values for real values of x and non- real values for non-real values of x ,then a=0 b.b=0 c.c=0 d.nothing can be said about a,b,c.

Let sqrt(((x+1)(x-3))/((x-2))) . Find all the real values of x for which y takes real values.

If x is real,the expression (x+2)/(2x^(2)+3x+6) takes all value in the interval