Question
Tue October 11, 2011 By:

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Expert Reply
Tue October 11, 2011
A-2B = 3i + 4j -3k
 
Angle made with z axis , cos Ø = -3 / sqrt( 32 + 42 + 32 ) = -3/ sqrt(34)
                                    So, Ø = cos -1( -3/ sqrt(34))
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