Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Algebra Quadratic Equation
The value of c for which the equation ax2 + bx + c = 0 has equal roots
1
\(\frac{b^2}{a}\)
2
\(\frac{b^2}{4a}\)
3
\(\frac{a^2}{b}\)
4
More than one of the above
5
None of the above