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Let Then \int C Fdr\mathbf { F } \bullet d \mathbf { r }

Question 13

Multiple Choice

Let F(x,y) =2xyi+3xj,r(t) =3t2itj,0t1\mathbf { F } ( x , y ) = 2 x y \mathbf { i } + 3 x \mathbf { j } , \mathbf { r } ( t ) = 3 t ^ { 2 } \mathbf { i } - t \mathbf { j } , 0 \leq t \leq 1 . Then \int C Fdr\mathbf { F } \bullet d \mathbf { r } is


A) 265- \frac { 26 } { 5 }
B) 235- \frac { 23 } { 5 }
C) 215- \frac { 21 } { 5 }
D) 195- \frac { 19 } { 5 }
E) 515- \frac { 51 } { 5 }

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