The roots of the equation [s² - 8s + 16 = 0] are?
- Real and Equal
- Real and Distinct
- Pure Imaginary
- None of these
Explanation
s² - 8s + 16 = 0
Discriminant = b² - 4ac = (-8)² - 4(1)(16) = 64 - 64 = 0
When D = 0, roots are Real and Equal.
Here: (s - 4)² = 0 → s = 4, 4
Last verified on 12-04-2026
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