exam Maths Puzzle Numerical Ability

Is there a way or maybe an equation to tell what an imaginary number is going to be?


For example: i to the 14th power would be...

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exam Other Question

The magnitude and direction of vectors u and v are given. Choose the correct magnitude:
u: magnitude 1,850, bearing 125o
v: magnitude 2,960, bearing 25o
W: u + 2v
find the domain of the square root of 4-x^2/ x-3