What is the value of 10(cos(-60)+isin(-60)) ?

The value of 10(cos(-60)+isin(-60)) is 5-8.66025…i

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10(cos(-60)+isin(-60))

10 (cos (- 6 0^{\circ}) + i sin (- 6 0^{\circ}))

5 - 8.66025 \dots i

Solution steps

10 (cos (- 6 0^{\circ}) + i sin (- 6 0^{\circ}))

Refine to a decimal form

= 5 - 8.66025 \dots i

arcsin (\frac{20}{30})

cos (5 3^{\circ}) \cdot 3

cos (arctan (\frac{6}{5}))

arctan (\frac{0.0258}{0.004})

arccos (\frac{1 7 ^{2} - 9.7 5 ^{2} - 2 2 ^{2}}{- 2 \cdot 9.75 \cdot 22})

What is the value of 10(cos(-60)+isin(-60)) ?
The value of 10(cos(-60)+isin(-60)) is 5-8.66025…i