O Let G be a planar graph with k components. Prove that n − q + r = 1+k, where n is the order of G, q is its size, and r is the number of regions in G.

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Q: x+4 14. If f(x) = *** and g(x) = x² - 4, what is ƒ(g(5)) ? 2

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A: The function to be differentiated is f(a,b)=a2*b3+5*b4+7*a.

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A: Step 1:I'll provide detailed solutions for each part of the question: 1.For the function f(x,y):(a)…

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