(Solved): Evaluate the double integral \( \iint_{R} e^{5 y} \cdot \cos (4 x) d A \) where \( R=\{(x, y) \mid ...

Evaluate the double integral \( \iint_{R} e^{5 y} \cdot \cos (4 x) d A \) where \( R=\{(x, y) \mid 0 \leq x \leq 1 \pi, 2 \leq y \leq 4\} \) Double Integral Plot of integrand and Region \( R \) This plot is an example of the function over region \( \mathrm{R} \). The region and function identified in your problem will be slightly different. Answer \( = \)