Homework Help Forum: Vectors and Geometry

Posted by Peaklife on Monday, November 2, 2009 at 4:28am.

if A=i+j, B=2i-3j+k and C=4j-3k find (i) (AxB)xC & Ax(BxC)

• Vectors and Geometry - drwls, Monday, November 2, 2009 at 4:58am

  I'll start this out, using the determinant rule for vector cross products. You do the last part, and check my work for errors. A x B = |i j k| |1 1 0| |2 -3 1| = i -j -5k (AxB) x C = |i j k| |1 -1 -5| |0 4 -3| = 17i + 3j +4k

  
  

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