Perform the Operation and Leave the Result in Trigonometric Form $$\left( \cos 7 ^ { \circ } + i \sin 7 ^ { \circ } \right) \left( \cos 24 ^ { \circ } + i \sin 24 ^ { \circ } \right)$$

question 27

Multiple Choice

Perform the operation and leave the result in trigonometric form.​ $$\left( \cos 7 ^ { \circ } + i \sin 7 ^ { \circ } \right) \left( \cos 24 ^ { \circ } + i \sin 24 ^ { \circ } \right)$$ ​

• A)cos 17° - isin 17°
• B)cos 31° - isin 31°
• C)cos 17° + isin 17°
• D)cos 31° + icos 31°
• E)cos 31° + isin 31°

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