NDA2016MathematicsQuadratic EquationActual
Paragraph: 2 x^2+3 x- -0 has roots -2 and while the equation x^2-3 mx +2 ~m ^2=0 has both roots positive, where 0 and 0 . Question: What is the value of ?
Options
- A1 / 2
- B1
- C2
- D4
Correct answer
C. 2
Step-by-step solution
2 x^2+3 x- =0 Its roots are: -2 & . i.e., -3 2 = -2 =2- 3 2 = 1 2 = 1 2 2 =2 =4 1 2 =2