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# Find the equation of straight line passing through $(at_1,\large\frac{a}{t_1})$ & $(at_2,\large\frac{a}{t_2})$?

$\begin{array}{1 1}(a)\;t_1t_2y+x=a(t_2+t_1)\\(b)\;t_1t_2x+y=a(t_2+t_1)\\(c)\;2t_1t_2y+x=a(t_2+t_1)\\(d)\;t_1t_2y+x=2a(t_2+t_1)\end{array}$