3. Define f:R –→ R by ƒ (x) = sin (1/x) if x # 0 and f (0) = 0. (a) Show that fis not continuous at 0. (b) Show that fhas the intermediate value property on R.
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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,∞).
- Show that f(z) =xy+iy is everywhere continuous but is not analyticOn the set of continuous functions in the range [−1,1] Which two functions below are perpendicular to each other according to the inner product defined as ⟨f,g⟩=∫1−1f(x)g(x)dx?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, y) = x2y4 sin(1/ (sqrt(x2+y2)) where (x, y) cannot be (0, 0) and f(0, 0) = 0 Is f continuous in origo?A function h(x, y) is defined by h(x,y)=(x^2 y)/(〖7x〗^6+y^3 ). Verify the limit over h(x, y) exists at the origin along y = x^2? In either case write also the reason.give an example where f is not derivable at [0, ∞), but is uniformly continuous