Chapter 2: Problem 12
The numbers are too large to be handled by a calculator. These exercises require an understanding of the concepts. Write \(5^{3} \cdot 25^{2000}\) as a power of \(5 .\)
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Chapter 2: Problem 12
The numbers are too large to be handled by a calculator. These exercises require an understanding of the concepts. Write \(5^{3} \cdot 25^{2000}\) as a power of \(5 .\)
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Write the indicated expression as a ratio of polynomials, assuming that $$ r(x)=\frac{3 x+4}{x^{2}+1}, \quad s(x)=\frac{x^{2}+2}{2 x-1}, \quad t(x)=\frac{5}{4 x^{3}+3} $$. $$ (4 r+5 s)(x) $$
Write each expression as the sum of a polynomial and a rational function whose numerator has smaller degree than its denominator. $$ \frac{x^{6}-4 x^{2}+5}{x^{2}-3 x+1} $$
Suppose \(t(x)=\frac{5}{4 x^{3}+3}\). (a) Show that the point (-1,-5) is on the graph of \(t\) (b) Give an estimate for the slope of a line containing (-1,-5) and a point on the graph of \(t\) very close to (-1,-5)
Explain why the composition of two rational functions is a rational function.
Suppose \(s(x)=\frac{x^{2}+2}{2 x-1}\) (a) Show that the point (1,3) is on the graph of \(s\). (b) Show that the slope of a line containing (1,3) and a point on the graph of \(s\) very close to (1,3) is approximately -4 [Hint: Use the result of Exercise \(25 .]\)
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