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If F(x,y)=(2xyysinx)i+(x2+cosx)j\mathbf { F } ( x , y ) = ( 2 x y - y \sin x ) \mathbf { i } + \left( x ^ { 2 } + \cos x \right) \mathbf { j }

Question 72

Multiple Choice

If F(x,y) =(2xyysinx) i+(x2+cosx) j\mathbf { F } ( x , y ) = ( 2 x y - y \sin x ) \mathbf { i } + \left( x ^ { 2 } + \cos x \right) \mathbf { j } is a conservative field, then its potential function f(x,y) f ( x , y ) is


A) 2x2y+ycosx+C2 x ^ { 2 } y + y \cos x + C
B) x2yycosx+C- x ^ { 2 } y - y \cos x + C
C) x2y+ycosx+C- x ^ { 2 } y + y \cos x + C
D) x2yycosx+Cx ^ { 2 } y - y \cos x + C
E) x2y+ycosx+Cx ^ { 2 } y + y \cos x + C

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