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IT'S URGENT! A=-ax+ay2-az2 This is a vector. a) |A|=? What is the magnitude of A? b)...

IT'S URGENT!

A=-ax+ay2-az2

This is a vector.
a) |A|=? What is the magnitude of A?

b) expression of the unit vector aA in the direction of A.

c)the angel A makes with z-axis

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