Advertisements
Advertisements
प्रश्न
Find the value of the discriminant in the following quadratic equation :
10 x - `1/x` = 3
Advertisements
उत्तर
10 x - `1/x` = 3
10x2 - 3x - 1 = 0
Discriminant = b2 - 4ac
= (-3)2 - 4 (10) (-1)
= 9+ 40
= 49
APPEARS IN
संबंधित प्रश्न
Find the values of k for which the given quadratic equation has real and distinct roots:
kx2 + 2x + 1 = 0
Determine the nature of the roots of the following quadratic equation :
(x - 1)(2x - 7) = 0
Solve the following quadratic equation using formula method only
`2x^2 - 2 . sqrt 6x + 3 = 0`
Find the value of k for which the roots of the equation 3x2 - 10x + k = 0 are reciprocal of each other.
Find the value of k for which the given equation has real roots:
kx2 - 6x - 2 = 0
Determine whether the given quadratic equations have equal roots and if so, find the roots:
x2 + 2x + 4 = 0
Find the values of k for which each of the following quadratic equation has equal roots: 9x2 + kx + 1 = 0 Also, find the roots for those values of k in each case.
Choose the correct answer from the given four options :
If the equation 3x² – kx + 2k =0 roots, then the the value(s) of k is (are)
Solve the quadratic equation: `x^2 + 2sqrt(2)x - 6` = 0 for x.
One root of equation 3x2 – mx + 4 = 0 is 1, the value of m is ______.
