
Home > CALC > Chapter 1 > Lesson 1.2.3 > Problem 1-56
1-56.
Wei Kit loves shortcuts! When calculating with fractional exponents, he looks for a way to avoid using his calculator. For example, he found out that
Use Wei Kit's method to evaluate the following expressions:
To avoid dealing with large numbers, find the square root of
first. After all, is equivalent to .
Step 1: What is the cube-root of
?
Step 2: Raise the cube-root ofto the th-power.
What is the fourth-root of
?
Reduce
before evaluating.