Plz guide me in the following questions, step by step & plz write all important formulas, since my Linear Algebra is not good:
Q1-Find all unit vectors in the plane determined by u=(3,0,1) and v = (1,-1,1) that are perpendicular to the vector w= (1,2,0). Ans. (6/√61,-3/√61,4/√61)
Q2-Use the cross product to find the sine of the angle between the vectors u =(2,3,-6) & v= (2,3,6). Ans.12√13/49
Q5-Distance between the point P and the line through A & B: P(-3,1,2),A(1,1,0),B(0,2,-1). Ans.2√141/√29
Thank u in advance, and if u could provide me ur E-mail address to have future contanct in order to ask questions of MATHEMATICS. Thank u again.
2007-08-11
01:07:35
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3 answers
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asked by
Anonymous
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Mathematics