A) \[\frac{5\sqrt{3}}{2}\]
B) \[\frac{5\sqrt{5}}{2}\]
C) \[\frac{2\sqrt{5}}{3}\]
D) \[\frac{3\sqrt{5}}{2}\]
Correct Answer: D
Solution :
[d] Eliminating t gives \[{{y}^{2}}(x-1)=1\]. Equation of the tangent at \[P(2,1)\] is \[x+2y=4\]. Solving with curve \[x=5\] and \[y=-1/2\], we get \[Q\equiv (5,-1/2)\] or \[PQ=\frac{3\sqrt{5}}{2}\]You need to login to perform this action.
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