Evaluate the Integral $$\int _ { 0 } ^ { 8 \pi } \int _ { 0 } ^ { 13 \pi } ( \sin x + \cos y ) d x d y$$

question 323

Multiple Choice

Evaluate the integral.
- $$\int _ { 0 } ^ { 8 \pi } \int _ { 0 } ^ { 13 \pi } ( \sin x + \cos y ) d x d y$$

• A) \(17 \pi\)
• B) \(16 \pi\)
• C) \(9 \pi\)
• D) \(8 \pi\)

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