 |
| ||
| |||
|
| Math Central | Quandaries & Queries |
|
Question from Sherry: What is the exponential form of 3sqrt 15? |
I object to the term "THE exponential form" as an exponential form is any form involving exponents. $\sqrt{15}$ can be written
\[15^{1/2}\]
so I can write
\[3 \sqrt{15} = 3^1 \times 15^{1/2} = 3^1 \times (3 \times 5)^{1/2} = 3^1 \times 3^{1/2} \times 5^{1/2} = 3^{3/2} \times 5^{1/2}.\]
Each of these is in exponential form,
Penny
| ||
| ||
| ||
 |
 |
|
|
||
 |
||
| * Registered trade mark of Imperial Oil Limited. Used under license. | |
|
Math Central is supported by the University of Regina and the Imperial Oil Foundation.