WBJEE · Maths · Determinants
The least positive value of \(t\), so that the lines \(x=t+\alpha, y+16=0 \quad\) and \(\quad y=\alpha x\) are concurrent, is
- A 2
- B 4
- C 16
- D 8
Answer & Solution
Correct Answer
(D) 8
Step-by-step Solution
Detailed explanation
Consider the given equation of lines, \[ \begin{array}{r} x-(t+\alpha)=0 \\ y+16=0 \end{array} \] and \[ -\alpha x+y=0 \] Since, these lines are concurrent, therefore the system of equations is consistent. Now,…
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