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[" 7.A straight line "r=a+lambda" b meet...

[" 7.A straight line "r=a+lambda" b meets the plane "r*n=0" in "],[P" .The position vector of "P" is "],[[" (a) "a+((a*n)/(b*n))b," (b) "a-((a*n)/(b*n))b],[" (c) "a-((b*n)/(a*n))b," (d) None of these "]]

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