In this section, we will… Use rational exponent notation Find nth roots Evaluate and simplify...
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Transcript of In this section, we will… Use rational exponent notation Find nth roots Evaluate and simplify...
In this section, we will…
Use rational exponent notation
Find nth roots
Evaluate and simplify radical expressions
7.1 – nth Roots and Rational Exponents
RADICALS ARE SO RAD DUDE!!!! 1
If a is a non-negative real number, any number b, such that is the square root of a and is denoted
Examples: Evaluate the following by taking the square root.
2b ab a
16
Recall that…
Negative numbers do not have real square roots!121
2b a
2
RAD-TASTIC MATHEMATICSVocabulary Important Properties
3
n am
n m na a
mm
n na a
1 m
nm
na
a
RAD-RRRIFIC EXAMPLES4
• Rewrite the expression using rational exponent notation.
1.
2.
3.
4.
5.
5
3 8
3 24
89 13
165 2
1
251
38
2
34
8
91316
52
5
EXAMPLES WITH SWAGG
• Rewrite the expression using radical notation.
1.
2.
3.
4.
5.
3
7z
2
36
1
25
6
89
1
520
23 6
5
37 z
34 9
5 20
6
2 KOOL 4 SKOOL
• Evaluate the expression without a calculator.
1.
2.
3.
4.
5.
3 64
6 64
1
31
24 16
43 27
4
2
1
4
1
81
7
• Solve the equation.
MR. V’S EXAMPLES ARE DA BOMB
1.
2.
3.
3 125x
53 3x
2( 4) 0x
5x
1x
4x
pgs. 404-405 #14-22 even, 30-40 even, 53-55 all
8
Homework