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I face some problem when i try to find tan in like this questions

for example : write in polar

z1 = 1 - i

the answer is -5π/4

but my answer is

tan Q = y/x = -1/1 = -1

how I get -5π/4

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ex : 2

z = -root3 + i

my answer is

tanQ = -1/root3 = -0.143

but the answer is = 5π/6

How i get the answer 5π/6

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please help me >>

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# Homework Help: I want help to find tan of polar correctly

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