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If F(x,y)=2xsec2yi+2x2sec2ytan2yj\mathbf { F } ( x , y ) = 2 x \sec 2 y \mathbf { i } + 2 x ^ { 2 } \sec 2 y \tan 2 y \mathbf { j }

Question 91

Multiple Choice

If F(x,y) =2xsec2yi+2x2sec2ytan2yj\mathbf { F } ( x , y ) = 2 x \sec 2 y \mathbf { i } + 2 x ^ { 2 } \sec 2 y \tan 2 y \mathbf { j } is a conservative field, then its potential function f(x,y) f ( x , y ) is


A) 3x2sec2y+C3 x ^ { 2 } \sec 2 y + C
B) 2x2sec2y+C- 2 x ^ { 2 } \sec 2 y + C
C) 2x2sec2y+C2 x ^ { 2 } \sec 2 y + C
D) x2sec2y+Cx ^ { 2 } \sec 2 y + C
E) x2sec2y+C- x ^ { 2 } \sec 2 y + C

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