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(1 point) Let y=ex/5. Find the differential dy when x=1 and dx=0.3 Find the differential dy when x=1 and dx=0.02
(1 point) Use differentials (or equivalently, a linear approximation) to approximate sin(56∘) as follows: Let f(x)=sin(x) and find the equation of the tangent line to f(x) at a "nice" point near 56∘. Then use this to approximate sin(56∘). Approximation =