Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Quantitative Aptitude Progression Harmonic Progression
If the roots of a(b - c) x2 + b(c - a) x + c(a - b) = 0 are equal, then a, b, c are:
1
in geometric progression
2
in harmonic progression
3
in arithmetic progression
4
More than one of the above
5
None of the above