Find the Product $\left[ 4 \operatorname { cis } 45 ^ { \circ } \right] \left[ 6 \operatorname { cis } 225 ^ { \circ } \right]$

question 382

Multiple Choice

Find the product. Write the product in rectangular form, using exact values.
- $\left[ 4 \operatorname { cis } 45 ^ { \circ } \right] \left[ 6 \operatorname { cis } 225 ^ { \circ } \right]$

• A) \(24 \mathrm { i }\)
• B) \(- 24\)
• C) \(- 24 \mathrm { i }\)
• D) 24