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Solve the Problem 1(1+x2+y2)4dxdy\int _ { - \infty } ^ { \infty } \int _ { - \infty } ^ { \infty } \frac { 1 } { \left( 1 + x ^ { 2 } + y ^ { 2 } \right) ^ { 4 } } d x d y

Question 276

Multiple Choice

Solve the problem.
-Evaluate
1(1+x2+y2) 4dxdy\int _ { - \infty } ^ { \infty } \int _ { - \infty } ^ { \infty } \frac { 1 } { \left( 1 + x ^ { 2 } + y ^ { 2 } \right) ^ { 4 } } d x d y


A) π4\frac { \pi } { 4 }
B) π3\frac { \pi } { 3 }
C) π8\frac { \pi } { 8 }
D) π5\frac { \pi } { 5 }

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