If the line x - 2 = 0 is the directrix of the parabola y2 - kx + 4 = 0, then k is equal to
यदि रेखा1-2 = 0, परवलय y-kx+ 4 = 0 की नियता है तब k का मान बराबर है
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-------(1)
-----(2)
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