In our second lesson today we extended our understanding of exponents and roots by working with the exponent of 3. When we take something to the third power, we can say that we cubed it. The inverse operation of cubing is cube rooting, just like the square root is the inverse of squaring. The 3-2 homework is very similar to the 3-1 homework. However, many calculators don't have a cube root button. Luckily, the calculator in the Math Tools part of Pearson DOES have a cube root button. The calculator inside of the homework Question Help does not, though. Check out the screen shots below to see how to get to the cube root button on the calculator in the math tools. We did two lessons today, 3-1 and 3-2. They are addressed in separate posts. The first lesson, 3-1, focused on the relationship between squaring a number and square rooting a number. Square and square root are inverse operations, which means they undo each other. We took notes in class, which you can download here. Check out some examples from today below. Here's a great video that reviews many things we learned today. |
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