Chapter 2: Problem 10
The numbers are too large to be handled by a calculator. These exercises require an understanding of the concepts. Write \(2^{3000}\) as a power of 8 .
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Chapter 2: Problem 10
The numbers are too large to be handled by a calculator. These exercises require an understanding of the concepts. Write \(2^{3000}\) as a power of 8 .
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Write each expression as the sum of a polynomial and a rational function whose numerator has smaller degree than its denominator. $$ \frac{2 x+1}{x-3} $$
Suppose \(p(x)=3 x^{7}-5 x^{3}+7 x-2\) (a) Show that if \(m\) is a zero of \(p\), then $$ \frac{2}{m}=3 m^{6}-5 m^{2}+7 $$ (b) Show that the only possible integer zeros of \(p\) are \(-2,-1,1,\) and 2 . (c) Show that no integer is a zero of \(p\).
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 \(25 .]\)
Suppose $$r(x)=\frac{x+1}{x^{2}+3} \quad \text { and } \quad s(x)=\frac{x+2}{x^{2}+5}$$ Find two distinct numbers \(x\) such that \(s(x)=\frac{1}{8}\).
Suppose \(q\) is a polynomial of degree 4 such that $$ \begin{array}{r} q(0)=-1 . \text { Define } p \text { by } \\ \qquad p(x)=x^{5}+q(x) . \end{array} $$ Explain why \(p\) has a zero on the interval \((0, \infty)\).
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