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OpenStudy (hang254):
Express the complex number in trigonometric form. -5i
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OpenStudy (hang254):
@ganeshie8 @MathWiz1997 @cwrw238
OpenStudy (hang254):
@aaronq @experimentX
OpenStudy (experimentx):
hold on a sec
OpenStudy (sidsiddhartha):
Complex numbers is trigonometric form ------ value[cos(theta)+i*sin(theta)]
OpenStudy (experimentx):
-5e^(i Pi/2)
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OpenStudy (sidsiddhartha):
here the magnitude is 5 and the angle is (3*pi/2) so in trig form f(x)= 5(Cos[270]+iSin[270]
OpenStudy (hang254):
Alright, thanks for the help guys!
OpenStudy (sidsiddhartha):
u can check it cos 270˚ = 0 sin 270˚ = -1 so 5(Cos[270]+iSin[270] =5(-i)=-5i
OpenStudy (sidsiddhartha):
no pro :)
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