How many times can we be allowed to retake the test and if possible where? ]]>

Thank you sir ]]>

You mean

(a×b•c)² = -(b×a•c)² = (c×a•b)²

i.e

(a×b•c)² = (c×a•b)² ]]>

If a•b×c = a×b•c ,

Why is it that (a×b)•(b×c)×(c×a) != (a×b)×(b×c)•(c×a)

I noticed that the RHS is (a×b•c)² from solved question 1.16 on page 78

But when the cross and the dot operator were interchange i.e (a×b)×(b×c)•(c×a) on the LHS we get (c×a•b)² which makes it not equal ]]>

1.16 Show that ( × ) ⋅ ( × ) × ( × ) = ( × ⋅ )^2

( × ) ⋅ ( × ) × ( × ) = ( × ) ⋅ [( × ) ⋅ ] − ( × ) ⋅ [( × ) ⋅ ]

I don’t really get Wat happened here….seems to me like a part of the equation was just taken

= ( × ) ⋅ [( × ) ⋅ ]

= ( × ⋅ )(( × ) ⋅ )

= ( × ⋅ )( ⋅ × )

= ( × ⋅ )^2