lesson 1 – 1 real numbers advanced math/trig no calculator!!! ch 1.1 – 1.5 test tuesday 9/15/15
TRANSCRIPT
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Lesson 1 – 1 Real Numbers
Advanced Math/Trig
No Calculator!!!
Ch 1.1 – 1.5 TestTuesday 9/15/15
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Learning Objective
To understand properties of real numbers
To understand union of sets
To understand intersection of sets
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Real (R )
Rational (Q) Irrational (H)
Integers (Z)
Whole (W)
Natural (N)
(…,–2, –1, 0, 1, 2, …)
Terminating or repeating decimal(4, –5, 0.02, 0.3333, ) 11
2
3( 3, , , 7,etc)e
(0, 1, 2, 3, …)
(1, 2, 3, …)
Real Numbers
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1, 2, 3… Natural (N)
0, 1, 2, 3… Whole (W)
… –3, –2, –1, 0, 1, 2, 3…Integers (Z)
Real Numbers (R)Irra
tional (H
)…-, 0.222, 1, 2,
Rational (Q)
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In which set does each belong?
1. 2
2.
3.
4. 1.6
5. 0.
6. –7
N, W, Z, Q, R
Q, R
H, R
Q, R
Q, R
Z, Q, R
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Union & Intersection of Sets
Union of Sets – AB elements in A, in B, or in BOTH include ALL elements (don’t repeat)
Intersection of Sets – A B must be in BOTH A & B only include the elements in both
sets
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ExamplesLet R = {real numbers}
H = {irrational numbers}
Q = {rational numbers}
Z = {integers}
W = {whole numbers}
N = {natural numbers}
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1, 2, 3… Natural (N)
0, 1, 2, 3… Whole (W)
… –3, –2, –1, 0, 1, 2, 3…Integers (Z)
Real Numbers (R)Irra
tional (H
)…-, 0.222, 1, 2,
Rational (Q)
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Find the following1. Z H
2. Z Q
3. N Q
4. N H
5. N W
6. N W
(null set)
Q
Q
(null set)
W
N
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A = {0, 2, 3, 4, 6, 9}
B = {0, 2, 4, 6, 8, 10} C = {3,
4, 5, 6}
1. A B
All elements, but don’t repeat
{0, 2, 3, 4, 6, 8, 9, 10}
2. C B
Include elements that are only in BOTH
{4, 6}
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A = {0, 2, 3, 4, 6, 9}
B = {0, 2, 4, 6, 8, 10} C = {3,
4, 5, 6}
3. (A B) C
Grouping symbol first!
{0, 2, 3, 4, 6, 8, 9, 10} {3, 4, 5, 6}
{3, 4, 6}
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A = {0, 2, 3, 4, 6, 9}
B = {0, 2, 4, 6, 8, 10} C = {3,
4, 5, 6}
4. (A B) C
{0, 2, 4, 6} {3, 4, 5, 6}
{0, 2, 3, 4, 5, 6}
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A = {0, 2, 3, 4, 6, 9}
B = {0, 2, 4, 6, 8, 10} C = {3,
4, 5, 6}
5. A (B C)
{0, 2, 3, 4, 6, 9}{0, 2, 3, 4, 5, 6, 8, 10}
{0, 2, 3, 4, 6}
Different than #4!!
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A = {0, 2, 3, 4, 6, 9}
B = {0, 2, 4, 6, 8, 10} C = {3,
4, 5, 6}
6. (A B) C
{0, 2, 4, 6} {3, 4, 5, 6}
{4, 6}
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Ticket Out the Door
Determine N Z, and EXPLAIN how you came to your conclusion.
Determine N Z, and EXPLAIN how you came to your conclusion
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Homework#101 Pg. 9 #1 – 9 odd, 11 – 20 all,
21 – 31 odd