What is the cross product of #[1, 3, 4]# and #[3,2, 5] #?

Answer 1

#< 7, 7, -7 >#

There are two methods for doing this. This is one of them:

The cross product of #< a_x,a_y,a_z > xx < b_x,b_y,b_z > = # where#{ (c_x=a_yb_z-a_zb_y),(c_y=a_zb_x-a_xb_y),(c_z=a_xb_y-a_yb_x):}#

Using this method: with #{:(a_x,a_y,a_z,,b_x,b_y,b_z),(1,3,4,,3,2,5):}#

#c_x=3xx5-4xx2=7# #c_b=4xx3-1xx5 =7# #c_z=1xx2-3xx3=-7#

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Answer 2

Amelia Adams

The cross product of [1, 3, 4] and [3, 2, 5] is [7, 11, -7].

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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