Week 1 in Precalc 11 – Exponents and Radicals

This week, I learned about exponents and radicals. I chose this topic because I was able to understand it pretty quickly and it is easy to remember. I learned that there are numbers at the end of the radicand called the “index” which tells you what the root number is and if there is no number it means that it is a square root (^2).

For example if the index is a 2 or no number it would be suare root and if 3 it would be a cube root, and so on.

This would be 3 because 3×3=9

 

 

This would be 3 as well because 3×3 =9 and 9×3=27 for a total of 3times itself 3 times.

I also learned that there can be coefficients beside the radical that is a multiplier.

For example, if it’s asking for the square root of 49 and there is a coefficient (3) beside it, you would find the square root which is 7 and multiply it by the coefficient, in my example,(3).

 

Adding and Subtracting Radicals (solutions, examples, videos, worksheets, activities)

 

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