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Mathematics 10 Online
OpenStudy (anonymous):

Express the complex number in trigonometric form. 6 - 6i

OpenStudy (anonymous):

OpenStudy (cwrw238):

the modulus is sqrt(6^2 + 6^2) = sqrt72 or 6 sqrt2

OpenStudy (anonymous):

so the answer is C?

OpenStudy (cwrw238):

i'll check it out - problem is i'm pretty rusty with these

OpenStudy (cwrw238):

argument is (cos (7pi/4) + i sin(7/4)

OpenStudy (cwrw238):

so correct is A

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