Evaluating a Logarithm To a Fraction Without a Calculator
Interactive Video
•
Mathematics
•
11th Grade - University
•
Practice Problem
•
Hard
Wayground Content
FREE Resource
The video tutorial explains how to evaluate the expression log base 2 of 1/8 without using a calculator. The instructor begins by rewriting the expression in exponential form, setting it equal to X. The goal is to find the power to which 2 must be raised to equal 1/8. The instructor demonstrates how to rewrite the expression so that both sides have the same base, using properties of exponents. By equating the exponents, the solution is found to be -3.
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2 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
What is the significance of having the same base when solving exponential equations?
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
How do you determine the value of X when the bases are the same in an exponential equation?
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