2- Find the equation of the tangent line to the curve 9xCos(7y) + 5y = 9 at y = 0.

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Q: lim (x,y)→(0,0) 1 - cos(7xy) ху x-y lim (x,y)→(9,9) x4 — 4 - = m m www m

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Q: If f/u) = sinu; then (fog)'(3) = ? B) 1 = g(x) c) 6 10 kone E) None D) 9 A hind S'hospitals

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