Q71.The number of distinct real roots of x4 −4x + 1 = 0 is (1) 0 (2) 1 (3) 2 (4) 4
What This Question Tests
This question requires finding the number of distinct real roots of a polynomial equation by analyzing its derivative, identifying local extrema, and understanding the general shape of its graph.
Concepts Tested
Formulas Used
f'(x) = 0 for critical points
Second Derivative Test for local extrema
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📋 Question Details
- Chapter
- Applications of Derivatives
- Topic
- Roots of Polynomial Equations
- Year
- 2022
- Shift
- 27 Jun Shift 1
- Q Number
- Q71
- Type
- MCQ
- NCERT Ref
- Class 12 Mathematics Ch 6: Applications of Derivatives
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