Define g : R →R x sin (1/x), g(x) = 10, x # 0 x = 0. Explain why g is continuous at 0; in particular, explain the key estimation that's required in proving this fact.
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- If a functionfis increasing on (a,b) and decreasing on (b,c) , then what can be said about the local extremum offon (a,c) ?Consider the function f defined on [0,∞), f(x)=(x^r)sin(1/x), for x≠0 and f(x)= 0, where r>0. Determine the range of r in which a) f is continuous on [0,∞), b) f is differentiable on [0,∞), c) f' exits and is differentiable on [0,∞).consider the function f defined on [0,∞),f(x)=(x^r)sin(1/x),for x≠0 and f(x)=0 and for x=0, where r >0. determine the range of r in which (a) f is continuous on (0,∞), (b) f is differentiable on [0,∞) (c) f' exists and is differentable on [0,∞).
- Consider the function f defined on [0,∞] f(x) = { xr sin(1/x), x≠0, 0, x=0} where r > 0. Determine the range of r in which a) f is continuous on [0,∞] b) f is differentiable on [0,∞) c) f' exists and is differentiable on [0, ∞)Let f(x) = tan x. (a) Find the linearization of f(x) at x = (π)/(4). (b) Use your linearization to approximate tan 44°.