Answer to Question #39975 in Analytic Geometry for rupesh kumar

Analytic Geometry

Question #39975

1.For The Vector a b c and d show that :
(axb).(cxd)+(bxc).(axd)+(cxa).(bxd)=o
2.Find Two Unit vector Perpendicular to both
A=i-2j+3k
B= -2i+4j

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