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[" 10.The direction ratios of normal to ...

[" 10.The direction ratios of normal to the plane through the "],[" points "(0,-1,0)" and "(0,0,1)" and making an angle "(pi)/(4)" with "],[" the plane "y-z+5=0" are "],[[" (a) "sqrt(2),1,-1," (b) "2,-1,1],[" (c) "2,sqrt(2),-sqrt(2)," (d) "2sqrt(3),1,-1" (January "2019)]]

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