If and compute and and verify that these are not equal.

Given, and


We need to find.


First, we will find.


Recall the cross product of two vectors and is



Here, we have (a1, a2, a3) = (2, 5, –7) and (b1, b2, b3) = (–3, 4, 1)






Now, we will find.


Using the formula for cross product as above, we have






Now, we need to find.


First, we will find.


Using the formula for cross product, we have






Now, we will find.


Using the formula for the cross product as above, we have






So, we found and



Therefore, we have.


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