ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
Expressions, Equations, and Functions Involving Powers, Roots, and Radicals Videos 9 videos
f(x) = 3ˣ. Which of the following equations must be true?
TSI Math: Understanding Exponent Rules 20 Views
Share It!
Description:
x⁵ = -1. Which of the following is equal to x362?
- Intermediate Algebra and Functions / Expressions, Equations, and Functions Involving Powers, Roots, and Radicals
- Test Prep / TSI
- TSI / TSI Math
- TSI / TSI Mathematics
- Intermediate Algebra and Functions / Expressions, Equations, and Functions Involving Powers, Roots, and Radicals
- TSI Mathematics / Intermediate Algebra and Functions
- Test Prep / TSI
- TSI Math / Intermediate Algebra and Functions
Transcript
- 00:01
Okay here we go here's The question Exit The fifth
- 00:04
equals negative one Which of the following is equal to
- 00:07
x to the three hundred sixty second If x to
- 00:14
the fifth is negative one the only possible value for
- 00:18
x is negative one right Because you're multiplying an odd
Full Transcript
- 00:21
number of times we got negative one than time thing
- 00:24
One would be positive one times that negative want to
- 00:26
be the third But you did it the fifth time
- 00:27
so it's negative one Well in that case x to
- 00:30
the three sixty second that's negative one to the three
- 00:34
sixty seconds it has to be equal to one and
- 00:37
even power of a negative number is positive in any
- 00:40
power of negative One is either negative one or positive
- 00:43
one got it So if you didn't know the fact
- 00:46
that it's an even number to the power of thingy
- 00:49
there makes it and even number well you could have
- 00:51
just looked at the x to the fifth thing and
- 00:53
x to the fourth was a positive number and exit
- 00:56
The fifth was thinking about to six positive Just kind
- 00:58
of derived it that way okay that's it We're done 00:01:02.071 --> [endTime] fish
Related Videos
Which is the best way to revise and combine sentences 1 and 2?
Where would the following sentence best be placed?
Which of the following is best to insert at the beginning of sentence 8?
Which is the best location for sentence 9?
Which of the following sentences is best to insert between sentences 11 and 12?