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Write the Complex Number in Trigonometric Form R(c r(cos⁡θ+isin⁡θ)r ( \cos \theta + i \sin \theta )

Question 443

Multiple Choice

Write the complex number in trigonometric form r(c r(cos⁡θ+isin⁡θ) r ( \cos \theta + i \sin \theta ) ) , with θ\theta in the interval [0 [0∘,360∘) \left[ 0 ^ { \circ } , 360 ^ { \circ } \right)
- −4−4i3- 4 - 4 i \sqrt { 3 }


A) 8(cos⁡290∘+isin⁡290∘) 8 \left( \cos 290 ^ { \circ } + i \sin 290 ^ { \circ } \right)
B) 4(cos⁡240∘+isin⁡240∘) 4 \left( \cos 240 ^ { \circ } + i \sin 240 ^ { \circ } \right)
C) 8(cos⁡240∘+isin⁡240∘) 8 \left( \cos 240 ^ { \circ } + i \sin 240 ^ { \circ } \right)
D) 8(cos⁡180∘+isin⁡180∘) 8 \left( \cos 180 ^ { \circ } + i \sin 180 ^ { \circ } \right)

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