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Maths CBSE Mentoring Hindi
Class 10 Crash course
Quadratic Equations
Annual Revision IV - Quadratic Equations
1.
PYQ - Nature of roots
Question:
1
m.
If the roots of equation \(ax^2 + bx + c = 0\), \(a \ne 0\) are real and equal, then which of the following relation is true?
\(c = \frac{b^2}{a}\)
\(ac = \frac{b^2}{4}\)
\(a = \frac{b^2}{c}\)
\(b^2 = ac\)
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