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z = 3i

r=3

theta=taninverse(3/0)=undefine

as we know tan theta is undefine at 90 and 270....check through qustion ..their is + sign with imag part....its mean angle is 90

so we write it as

3(cos90 + isin90)

Q: Write z equals 3i in abbreviated trigonometric form?

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When z = 8, z lies straight along the real axis, so r = 8 and theta = 0°

you simply differentiate the function and integrate the reamaing trigonometric equation leavin surd form in you ranswer

um... if i was in dat situation i would jus write Mar. and people will understand wat it mean i guess

Meter is usually abbreviated with "m" , so one meter would be 1 m.

454 million can be written as "454,000,000" or "454M" (abbreviated form).

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When z = 8, z lies straight along the real axis, so r = 8 and theta = 0°

you simply differentiate the function and integrate the reamaing trigonometric equation leavin surd form in you ranswer

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um... if i was in dat situation i would jus write Mar. and people will understand wat it mean i guess

Meter is usually abbreviated with "m" , so one meter would be 1 m.

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x = 3

X1 = -81

454 million can be written as "454,000,000" or "454M" (abbreviated form).