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Mathematics 8 Online
OpenStudy (sarahc):

Express the complex number in trigonometric form. -5i 5(cos 270° + i sin 270°) 5(cos 180° + i sin 180°) 5(cos 90° + i sin 90°) 5(cos 0° + i sin 0°)

OpenStudy (anonymous):

the first one

OpenStudy (jhannybean):

Don't give answers, D:<

OpenStudy (sarahc):

Evaluate the expression. r = <5, 9, -4>, v = <3, 3, -8>, w = <9, -6, -1> v ⋅ w <-15, -27, -32> 0 17 <27, -18, 8> B or c?

OpenStudy (anonymous):

what the angle is 270

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