# Exercises 67–70, show that the function has neither an absolute minimum nor an absolute maximum on its natural domain.67. y = x11 + x3 + x - 568. y = (1 - ex) /(ex + 1 )69. y = 3x + tan x70. y = 2x - sin 2x

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Exercises 67–70, show that the function has neither an absolute minimum nor an absolute maximum on its natural domain.

67. y = x11 + x3 + x - 5

68. y = (1 - ex) /(ex + 1 )

69. y = 3x + tan x

70. y = 2x - sin 2x

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To show that the below function has neither an absolute minimum nor an absolute maximum on its natural domain.

Step 3

Since the given function is a polynomial function therefore the domain of the...

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