Solved

Evaluate cFdr \int_{c} \mathrm{F} \cdot d r Where F(x,y)=x2yi+xy32j F(x, y)=x^{2} y \mathbf{i}+x y^{\frac{3}{2}} \mathbf{j}

Question 2

Multiple Choice

Evaluate cFdr \int_{c} \mathrm{F} \cdot d r where F(x,y) =x2yi+xy32j F(x, y) =x^{2} y \mathbf{i}+x y^{\frac{3}{2}} \mathbf{j} and r(t) =(1+8cost) i+(9cos2t) j,0tπ2\mathbf { r } ( t ) = ( 1 + 8 \cos t ) \mathbf { i } + \left( 9 \cos ^ { 2 } t \right) \mathbf { j } , 0 \leq t \leq \frac { \pi } { 2 }


A) 9,8945- \frac { 9,894 } { 5 }
B) 10,1345- \frac { 10,134 } { 5 }
C) 14,19310- \frac { 14,193 } { 10 }
D) 10,23310- \frac { 10,233 } { 10 }
E) 7,4465- \frac { 7,446 } { 5 }

Correct Answer:

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