10 points! express the complex number in trigonometric form. -4 a) 4(cos 270° + i sin 270°) b) 4(cos 90° + i sin 90°) c) 4(cos 0° + i sin 0°) d) 4(cos 180° + i sin 180°)

1/4 and 8/3 because:

the reciprocal if 4 is 1/4 because 4 is used as 4/1 and the opposite of that is 1/4. the opposite of 3/8 is 8/3 so that is the answer.

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