Question: This is in Differential Calculus. This is only multiple choice. Provide necessary solution for each items. Thank you and Godbless. 19. If x y -xtany

 This is in Differential Calculus. This is only multiple choice. Provide

This is in Differential Calculus. This is only multiple choice. Provide necessary solution for each items. Thank you and Godbless.

necessary solution for each items. Thank you and Godbless. 19. If x

19. If x y -xtany +xe - 3 = 0, find - by partial differentiation. 2ry - tany te 2ry - tany +e A) C) x' - xsec y +xe' x - xsec y+xe x -xsec y +xe' x - xsec y+xe" B) D) 2xy -tany +e' 2ry - tany +e' 20. Use partial derivative to compute y in the equation x y +xy'-xly + y sinx -4 =0. x'yty' -xly +ycos.x 3x y+ y' - ly + y cos.x A) C) x' + 3xy? _ x - + sinx x'+ 3xy' - ly + sinx y x' + 3xy - + sinx 3x y+y' - ly +ycos.x y B) D) x3 + 3xy- - + sinx 3x y+y - ly +ycosx

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