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यदि रेखा (x+1)/(2) = (y-2)/(1) = (z-3)/(...

यदि रेखा `(x+1)/(2) = (y-2)/(1) = (z-3)/(-2)` तथा समतल `x-2y-kz =3` के बिहस का कोण `cos^(-1) ((2 sqrt2)/(3))` है, तो K का एक मान है

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