Home
Class 12
MATHS
Statement 1 Roots of x^(2)-2sqrt(3)x-46=...

Statement 1 Roots of `x^(2)-2sqrt(3)x-46=0` are rational.
Statement 2 Discriminant of `x^(2)-2sqrt(3)x-46=0` isa perfect square.

A

Statement -1 is true, Statement -2 is true, Statement -2 is a correct explanation for Statement-1

B

Statement -1 is true, Statement -2 is true, Statement -2 is not a correct explanation for Statement -1

C

Statement -1 is true, Statement -2 is false

D

Statement -1 is false, Statement -2 is true

Text Solution

Verified by Experts

In `ax^(2)+bx+c=0,a,b,c epsilonq`
[here Q is the set of rational number]
If `Dgt0` and is a perfect square, then roots are real, distinct and rational.
But here `2sqrt(3)!inQ`
`:.` Roots are not rational.
Here roots are `(2sqrt(3)+-sqrt((12+184)))/2`
i.e. `sqrt(3)+-7` [irrational ]
But `D=12+184=196=(14)^(2)`
`:.` Statement -1 is false and statement -2 is true.
Promotional Banner

Similar Questions

Explore conceptually related problems

The roots of the equation x^(2)-2sqrt(3)x+3=0 are

x^(2) + x/sqrt(2)+1=0

x^(2) + x + 1/sqrt(2)=0

x^(2) + x + 1/sqrt(2)=0

sqrt(3)x^(2) - sqrt(2)x + 3sqrt(3)=0

Solve: 2x^2+sqrt 3x+1=0

sqrt(2)x^(2) +x + sqrt(2)=0

Find K for which equation 4x^(2)+4sqrt(3)x+K=0 has equal roots.

The value of the discriminant of the solution 4x^(2) -4x + 1 =0 is

Solve: sqrt(3)x^(2)+10x-8 sqrt(3)=0