to prove:-
Asked by | 20th Feb, 2009, 05:13: PM
Expert Answer:
Beginning with the ubiquitous triple product identity
Ax(BxC) = B(A.C)-C(A.B) (1)
for vectors in R^3, we immediately have the handy formula for the
cross product of two cross products
(AxB)x(CxD) = B[(CxD).A] - A[(CxD).B]
Ax(BxC) = B(A.C)-C(A.B) (1)
for vectors in R^3, we immediately have the handy formula for the
cross product of two cross products
(AxB)x(CxD) = B[(CxD).A] - A[(CxD).B]
Answered by | 22nd Feb, 2009, 02:32: PM
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