Most Important Selected Qs for JEE AdvancedMathematicsQuadratic Equation
If and are the roots of the equation x^2-3 x-2=0 where , ( - 2 , 2 ) and > , then:
Options
- A- (0, 2 )
- B- ( 2 , )
- C2 = 1+ 17 1- 17
- D2 = 1- 17 1+ 17
Correct answer
C. 2 = 1+ 17 1- 17
Step-by-step solution
aligned & , = 3 17 2 & = 3- 17 2 , = 3+ 17 2 & ( - )= 17 1+(-2) =- 17 ( 2 , ) & 2 = [( + )+( - )]= ( + )+ ( - ) 1- ( + ) ( - ) = 1+ 17 1- 17 aligned