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Let F(x,y,z)=xj\mathbf { F } ( x , y , z ) = x \mathbf { j }

Question 180

Multiple Choice

Let F(x,y,z) =xj\mathbf { F } ( x , y , z ) = x \mathbf { j } . Evaluate the line integral CFdr\int _ { C } \mathbf { F } \cdot d \mathbf { r } along the elliptical path r(t) =costi+sintj+costk,0t2π\mathbf { r } ( t ) = \cos t \mathbf { i } + \sin t \mathbf { j } + \cos t \mathbf { k } , 0 \leq \mathrm { t } \leq 2 \pi .


A) π\pi

B) π2\pi \sqrt { 2 }
C) π3\pi \sqrt { 3 }
D) 2π2 \pi
E) 22π\frac { \sqrt { 2 } } { 2 } \pi
F) 32π\frac { \sqrt { 3 } } { 2 } \pi

G) π2\frac { \pi } { 2 }

H) π4\frac { \pi } { 4 }

Correct Answer:

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