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Question Number 108949 by mohammad17 last updated on 20/Aug/20

Commented by kaivan.ahmadi last updated on 20/Aug/20

z_x =(1/(√(1−(x+e^(√(y−1)) )^2 ))).tan(xy)+y(1+tan^2 (xy)).sin^(−1) (x+e^(√(y−1)) ) ⇒z_x (1,1)=(1/(√(−3)))tan1+(1+tan^2 1)sin^(−1) (2) is not defined, since (1,1)∉D_z_x .

zx=11−(x+ey−1)2.tan(xy)+y(1+tan2(xy)).sin−1(x+ey−1)⇒zx(1,1)=1−3tan1+(1+tan21)sin−1(2)isnotdefined,since(1,1)∉Dzx.

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