Question

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36. Sup
ang
22-25 Explain, using Theorems 4, 5. 7. and 9. why the function
is continuous at every number in its domain. State the domain.
2.x2 - x - 1
2
22. F(x)
23. 20) =
r2 + 1
By Le
(a)
(b
24. h(x) = cos(1 – x?)
25. M = N
DI
38.
W
tir
26-29 Use continuity to evaluate the limit.
26. lim x 20 – x2
27. lim sin(x + sin x)
ULTET
(28) lim x'tan r
11/4
29. lim x®/Vx2 + x - 2
IX
30. Show that f is continuous on (-00, ).
39. S
f(x) =
x2 if x < 1
x-1 if x>1
31-32 Find the numbers at which f is discontinuous. At which
of these numbers is f continuous from the whı sont
o
LINE
TERANG 1633 是

Answer 1

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Benz

直接代吧，因為x^2和tanx在π/4處均為連續函數，極限值等於函數值，直接代就好

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