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Evaluate the Double Integral R(x+2y)dA\iint _ { R } ( x + 2 y ) d A

Question 78

Multiple Choice

Evaluate the double integral R(x+2y) dA\iint _ { R } ( x + 2 y ) d A , where R={(x,y) 0x1,0yx}R = \{ ( x , y ) \mid 0 \leq x \leq 1,0 \leq y \leq x \} .


A) 14\frac { 1 } { 4 }

B) . 12\frac { 1 } { 2 }
C) 34\frac { 3 } { 4 }
D) 1
E) 16\frac { 1 } { 6 }
F) 13\frac { 1 } { 3 }

G) 23\frac { 2 } { 3 }
H) 56\frac { 5 } { 6 }

Correct Answer:

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