NDA2012MathematicsQuadratic EquationActual
If and are the roots of the equation x^2-q(1+x)-r=0 , then what is (1+ )(1+ ) equal to?
Options
- A1-r
- Bq-r
- C1+r
- Dq+r
Correct answer
A. 1-r
Step-by-step solution
gathered x^2-q x+(-q-r)=0 + =q =-q-r (1+ )(1+ ) 1+ + + 1+q-q-r 1-r . gathered