Westonci.ca is the Q&A platform that connects you with experts who provide accurate and detailed answers. Our platform offers a seamless experience for finding reliable answers from a network of knowledgeable professionals. Connect with a community of professionals ready to help you find accurate solutions to your questions quickly and efficiently.

How do I prove that 0.3333.. Is equal to 1/3 using a geometric series?

Sagot :

Answer:

Please see explanation.

Step-by-step explanation:

[tex]0.\overline{3}[/tex]

[tex]=\frac{1}{10}(3)+(\frac{1}{10})^2(3)+(\frac{1}{10})^3(3)+(\frac{1}{10})^4(3)\cdots[/tex]

[tex]=3 \cdot \frac{1}{10}(1+\frac{1}{10}+(\frac{1}{10})^2+(\frac{1}{10})^3 \cdots[/tex]

[tex]=3 \cdot \frac{1}{10}\sum_{i=1}^{\infty}(\frac{1}{10})^{n-1}[/tex]

[tex]=3 \cdot \frac{1}{10} \cdot \frac{1}{1-\frac{1}{10}}[/tex]

[tex]=\frac{3}{10} \cdot \frac{10}{10-1}[/tex]

[tex]=\frac{3}{10} \cdot \frac{10}{9}[/tex]

[tex]=\frac{3}{9}[/tex]

[tex]=\frac{1}{3}[/tex]

We hope you found this helpful. Feel free to come back anytime for more accurate answers and updated information. Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. Thank you for visiting Westonci.ca, your go-to source for reliable answers. Come back soon for more expert insights.