Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Algebra Quadratic Equation
Find the values of b for which the quadratic equation 4x2 + bx + 1 = 0 has equal roots.
1
Only 4
2
-8 and 8
3
-4 and 4
4
More than one of the above
5
None of the above