JEE Main 20266 AprilEvening Shift
- Exam
- JEE Main
- Year
- 2026
- Date
- 6 April
- Shift
- Evening Shift
- Subject
- Mathematics
- Chapter
- Quadratic Equation
JEE Main 2026 · 6 April · Evening Shift · Mathematics · Quadratic Equation
Consider the quadratic equation (n^2 - 2n + 2)x^2 - 3x + (n^2 - 2n...
Consider the quadratic equation , . Let be the minimum value of the product of its roots and be the maximum value of the sum of its roots. Then the sum of the first six terms of the G.P., whose first term is and the common ratio is , is :
Options
- A
- B
- C
- D
Correct answer
C.
Step-by-step solution
The given quadratic equation is .
Let . Since for all , the minimum value of is at .
The product of the roots is given by .
The minimum value of the product of the roots is .
The sum of the roots is given by .
The maximum value of the sum of the roots occurs when is minimum. Thus, .
We are given a Geometric Progression (G.P.) whose first term is and common ratio is .
The sum of the first six terms of this G.P. is:
Answer:
Let . Since for all , the minimum value of is at .
The product of the roots is given by .
The minimum value of the product of the roots is .
The sum of the roots is given by .
The maximum value of the sum of the roots occurs when is minimum. Thus, .
We are given a Geometric Progression (G.P.) whose first term is and common ratio is .
The sum of the first six terms of this G.P. is:
Answer: