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anonymous
 one year ago
Express the complex number in trigonometric form.
6i
anonymous
 one year ago
Express the complex number in trigonometric form. 6i

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hartnn
 one year ago
Best ResponseYou've already chosen the best response.2to convert it to trigonometric form, you need to find r and \(\theta\) bring 6i in the form of x+iy then \(r = \sqrt{x^2+y^2}\) and \(\theta = \arctan(y/x)\)

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2then your trigonometric form will be \(r (\cos \theta + i \sin \theta)\)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.06(cos 90 + i sin 90)?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2lets verify 6 cos 90 = 6*0 = 0 6 sin 90 = 6 so its actually +6i but we need 6i

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh!!! 6(cos 180 + i sin 180)

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2not actually... cos 180 is not 0.. we just need a negative sign in between, so we can take the angle as 90 and whats the positive angle representation of 90 ??? hint: add 360
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