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Polynomials

Question

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Classify the following numbers as rational or irrational:

$2 straight pi$

Solution

2 straight pi

because

2 space left parenthesis not equal to 0 right parenthesis

is a rational number and

straight pi

is an irrational number.

therefore

2 straight pi

is an irrational number.

because

The product of a non-zero rational number with an irrational numbers is irrational.

Some More Questions From Polynomials Chapter

Find two rational numbers between 0.1 and 0.2.

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