Let real and distinct roots of equation `x^2-mx+4=0` lies in `[1,5]` then range of `m` is (a) `(3,4)` (b) `(4,5)` (c) `(-5,-4)` (d) `(-3,4)`

Real roots of equation x^(2)+5|x|+4=0 are

Real roots of equation x^2 + 5 |x| + 4 = 0 are

Number of distinct real roots of equation 3x^4+4x^3-12x^2+4=0

If x= -4/3 , 7/5 are the roots of the equation mx^2+nx-28=0 ,find the value of m.n

The number of real roots of the equation x^2tanx=1 lies between 0 and 2pi is/are (A) 1 (B) 2 (C) 3 (D) 4

The set of all values of m for which both the roots of the equation x^2-(m+1)x+m+4=0 are real and negative is (a) (-oo,-3]uu[5,oo) (b) [-3,5] (c) (-4,-3] (d) (-3,-1]

Consider the polynomial f (x)= 1+2x+3x^2+4x^3 . Let s be the sum of all distinct real roots of f(x) and let t= |s| . The real number s lies in the interval. (a) (- 1/4, 0) (b) (- 11, - 3/4) (c) (- 3/4, - 1/2) (d) (0, 1/4)

The set off all values of m for which both the roots of the equation x^(2)-(m+1)x+m+4=0 are real and negative is (-oo,-3]uu[5,oo)(b)[-3,5] (c) (-4,-3](d)(-3,-1]