JEE MainMathematicsQuadratic Equation and InequalitiesMCQ+4 / −1
The sum of the squares of the roots of and the squares of the roots of , is
- A24
- B26
- C36
- D30
View written solutionFree
Correct answer: C
- Solve
Let Then , and the equation becomes Factorizing, So, Since , only is valid.
Thus, So, Hence roots are Their squares are Sum of squares from first equation:
- Solve
We split into cases.
Case 1:
Then . Equation becomes So . But this does not satisfy , so reject.
Case 2:
Then . Equation becomes So, Now check :
- valid
- valid
So roots are
Their squares sum is Use identity: Here , . So,
- Total sum
So the correct option is
- Comparison with stored answer
Stored correct answer: C
Our derived answer is also C.
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