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[" 16.If a vector "2hat i+3hat j+8hat k"...

[" 16.If a vector "2hat i+3hat j+8hat k" is perpendicular to the "],[" vector "-4hat i+4hat j+alphahat k" .then the value of "alpha" is "],[[" (a) "-1," (b) "-(1)/(2)],[" (c) "(1)/(2)," (d) "1]]

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