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Chapter 4: Q. 3 (page 241)

True or False : A test number for the interval-2<x<5could be 4.

Short Answer

Expert verified

True.

Step by step solution

01

Step 1. Given information.

Interval given is -2<x<5or (-2,5).

An interval is a range of numbers between two given numbers and includes all of the real numbers between those two numbers.

As 4comes in the interval (-2,5), so it can be a test number for the given interval.

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Most popular questions from this chapter

In Problems 39–56, find the real zeros of f. Use the real zeros to factor f.

f(x)=4x5-8x4-x+2

In Problems 63–72, find the real solutions of each equation.

x4+4x3+2x2-x+6=0

Find the bounds to the zeros of each polynomial function. Use the bounds to obtain a complete graph of f.

f(x)=2x3-x2-11x-6

In Problems 63–72, find the real solutions of each equation.

x4-x3+2x2-4x-8=0

Find the real zeros of f. Use the real zeros to factor f. f(x)=x4-x3-6x2+4x+8
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