   Chapter 2.6, Problem 76E

Chapter
Section
Textbook Problem

(a) How large do we have to take x so that 1 x < 0.0001 ? (b) Taking r = 1 2 in Theorem 5, we have the statement lim x → ∞ 1 x = 0 Prove this directly using Definition 7.Definition 7 (a)

To determine

To find: The large values of x when 1x<0.0001.

Explanation

Calculation:

Consider the inequality 1x<0.0001.

1x<0.00011x<110000

Take the reciprocal on both sides resulting by change in sign.

x>10000

Squaring on both sides

(b)

To determine

To prove: The limit function limx1x=0.

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