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Precalculus: Express the complex number in trigonometric form.

-2. plz really need help. no explanation is necessary

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sqdancefan

Answer:

  2∠180° . . . or . . . 2(cos(180°) +i·sin(180°))

Step-by-step explanation:

-2 is 2 units along the negative real axis. The direction of that from the origin is at an angle of 180° measured from the positive real axis. So, the magnitude is 2 units and the angle is 180°.

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