just a quick question on expressing in the form x + iy the answer i came to was: however im not sure if this is correct...

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Originally Posted by murielx just a quick question on expressing in the form x + iy the answer i came to was: however im not sure if this is correct... I am not sure how you expanded the above but it can be treated like a polynomial in i. Using the binomial theorem or by the distributive law you get