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Let S Be the Parametric Surface x=rcos⁡θ,y=rsin⁡θ,z=θ,0≤r≤1,0≤θ≤π2x = r \cos \theta , y = r \sin \theta , z = \theta , 0 \leq r \leq 1,0 \leq \theta \leq \frac { \pi } { 2 }

Question 150

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Let S be the parametric surface x=rcos⁡θ,y=rsin⁡θ,z=θ,0≤r≤1,0≤θ≤π2x = r \cos \theta , y = r \sin \theta , z = \theta , 0 \leq r \leq 1,0 \leq \theta \leq \frac { \pi } { 2 } . Use Stokes' Theorem to evaluate ∬Scurl⁡F⋅dS\iint _ { S } \operatorname { curl } \mathbf { F } \cdot d \mathbf { S } , where F(x,y,z)=−yi+xj+zk\mathbf { F } ( x , y , z ) = - y \mathbf { i } + x \mathbf { j } + z \mathbf { k } .

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