Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Algebra Quadratic Equation
If the equation (1 + t2)x2 +2tcx + (c2 − a2) = 0 has equal roots then which of the following is true?
1
t2= c2(1 + a2)
2
a2 = c2 (1 + t2)
3
c2 = a2 (1 + t2)
4
More than one of the above
5
None of the above