Evaluate (2x - y) dx + (x + 5y) dy. C: x-axis from (0, 0) to (0, -5) and (0, -5) to (5, -5)

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A: Given that,   U(x,y) = x2+2y   and x(r,t) = rsint,     y(r,t) =sin2t we have to find ∂u∂r,    ∂u∂t…

Q: If f(x) cos-(2x+5) 2, then dom(f) = %3D a+3 (A) (–3, –2) (B) [-3, –2] (С) (-3, —2] (D) (–1,1) (E)…

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Q: N h(x) = -0.8(x + 5)+39.9482 i(x) = 2-0.8(x-43.79)

A: 7) h(x)=-0.8(x+5)+39.9482 8)i(x)=2-0.8(x-43.79) 9) j(x)=0.1(x-57.5)2-0.0025(x-57.5).

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A: Explanation of the answer is as follows