Product of real roots of the equation `t^2x^2+|x|+9=0` a. is always +ve b. is always-ve c. does not exist d. none of these

Product of real roots of the equation t^(2)x^(2)+|x|+9=0 a.is always +ve b.is always-ve c.does not exist d.none of these

Product of real roots of the equation x^(2)+|x|+9=0

Both the roots of the equation (x-b)(x-c)+(x-a)(x-c)+(x-a)(x-b)=0 are always a. positive b. real c. negative d. none of these

Both the roots of the equation (x-b)(x-c)+(x-a)(x-c)+(x-a)(x-b)=0 are always a. positive b. real c. negative d. none of these

Both the roots of the equation (x-b)(x-c)+(x-a)(x-c)+(x-a)(x-b)=0 are always a. positive b. real c. negative d. none of these

Both the roots of the equation (x-b)(x-c)+(x-a)(x-c)+(x-a)(x-b)=0 are always a.positive b.real c.negative d.none of these

For the equation: x^(2)+18x+30=2sqrt(x^(2)+18x+45) a. product of real root of the equation is 20b . sum of real real root the equation is-18c. product of real root of the equation is 20d . sum of real root of the equation is 18

The number of real solutions of the equation e^(|x|)-|x|=0 , is A. 0 B. 1 c. 2 D. None of these.

Find the condition for which the roots of the equation ax^2-(a+1)x+1=0 are always real.