Calculus Drafting Module 1 PDF

Summary

This document provides an introduction to algebra, specifically focusing on real numbers, exponents, and polynomials. It defines different subsets of real numbers and explores their properties, including operations on these numbers. The document also introduces the concept of imaginary and complex numbers.

Full Transcript

INTERVENTION FOR CALCULUS DRAFTING Algebra Trigonometry Plane Geometry Analytic Geometry and Solid Geometry ENITV12D INTERVENTION FOR CALCULUS-DRAFTING Algebra: Real Numbers, Exponents and Polynomials Topic Outcomes ▪ Identify the different subsets of...

INTERVENTION FOR CALCULUS DRAFTING Algebra Trigonometry Plane Geometry Analytic Geometry and Solid Geometry ENITV12D INTERVENTION FOR CALCULUS-DRAFTING Algebra: Real Numbers, Exponents and Polynomials Topic Outcomes ▪ Identify the different subsets of real numbers; ▪ Plot numbers on the real number line and their notations; ▪ Define the absolute value and perform operations involving them; ▪ Use the laws of exponents to simplify exponential expressions; ▪ Perform algebraic operations on polynomial expressions; ▪ Factor polynomial expressions using different method; ▪ Perform algebraic operations on rational expressions. ENITV12D INTERVENTION FOR CALCULUS-DRAFTING Algebra: Real Numbers, Exponents and Polynomials The Real Number System ▪ Real Numbers Real numbers include all the numbers that can be found on the number line. ENITV12D INTERVENTION FOR CALCULUS-DRAFTING Algebra: Real Numbers, Exponents and Polynomials The Real Number System ▪ Imaginary Numbers Numbers that involve the square root of a negative number. The basic imaginary unit is “i" 𝑖0 = 1 𝑖4 = 1 𝑖8 = 1 𝑖 12 = 1 𝑖 16 = 1 𝑖1 = 𝑖 𝑖5 = 𝑖 𝑖9 = 𝑖 𝑖 13 = 𝑖 𝑖 17 = 𝑖 𝑖 2 = −1 𝑖 6 = −1 𝑖 10 = −1 𝑖 14 = −1 𝑖 18 = −1 𝑖 3 = −𝑖 𝑖 7 = −𝑖 𝑖 11 = −𝑖 𝑖 15 = −𝑖 𝑖 19 = −𝑖 ENITV12D INTERVENTION FOR CALCULUS-DRAFTING Algebra: Real Numbers, Exponents and Polynomials The Real Number System ▪ Complex Numbers Numbers that have both a real part and an imaginary part (𝑎 + 𝑏𝑖) Addition/Subtraction Multiplication Division (𝑎 ± 𝑏𝑖) (𝑎 ± 𝑏𝑖) ± (𝑐 ± 𝑑𝑖) (𝑎 ± 𝑏𝑖)(𝑐 ± 𝑑𝑖) (𝑐 ± 𝑑𝑖) 𝑎 ± 𝑏𝑖 (𝑎 ± 𝑐) ± 𝑏 ± 𝑑 𝑖 𝑐(𝑎 ± 𝑏𝑖) ± 𝑑𝑖(𝑎 ± 𝑏𝑖) 𝑥 (𝑐 ± 𝑑𝑖)𝑐𝑜𝑛𝑗𝑢𝑔𝑎𝑡𝑒 𝑐 ± 𝑑𝑖 ENITV12D INTERVENTION FOR CALCULUS-DRAFTING Algebra: Real Numbers, Exponents and Polynomials The Real Number System ▪ Real Numbers Non-Integers Rational Negative Numbers Numbers Natural Real Integers Numbers Numbers Whole Numbers Irrational Zero Numbers ENITV12D INTERVENTION FOR CALCULUS-DRAFTING Algebra: Real Numbers, Exponents and Polynomials The Real Number System ▪ Real Numbers Rational Numbers – can be expressed in fraction, either terminating Non-Integers or repeating decimals Rational 1 Negative 3 −3 1 Numbers = 0.50 = 0.75 Numbers − 3 = 0.3333 = 2 4 1 3Positive Real Integers Numbers Numbers Irrational Numbers – Whole cannot be expressedNatural in fraction, and have not Numbers decimals Numbers terminating and non-repeating Irrational 𝜋 = 3.14159 2 = 1.41421 𝑒 = 2.71828 Zero Numbers ENITV12D INTERVENTION FOR CALCULUS-DRAFTING Algebra: Real Numbers, Exponents and Polynomials The Real Number System ▪ Real Numbers Non-Integers Rational Negative Integers – include all whole numbers both positive and Numbers Numbers negative Positive Real Integers... , −4, −3, −2, −1, 0, 1, 2, 3, 4,Numbers... Numbers Whole Natural Numbers – have fractional Non-Integers Numbersor decimal part Irrational Zero 1 3 1 Numbers , , , 0.25, −2.5, −0.1 2 4 8 ENITV12D INTERVENTION FOR CALCULUS-DRAFTING Algebra: Real Numbers, Exponents and Polynomials The Real Number System ▪ Real Numbers Non-Integers Rational Negative Negative Numbers – numbers less Numbers Numbers than zero Positive Real Integers... , −4, −3, −2,Numbers −1 Numbers Whole Natural Whole Numbers – non-negative Numbers Numbers Irrational numbers starting zero Numbers 0, 1, 2, 3, 4,..Zero. ENITV12D INTERVENTION FOR CALCULUS-DRAFTING Algebra: Real Numbers, Exponents and Polynomials The Real Number System ▪ Real Numbers Non-Integers Rational Negative Natural Numbers – Numbers Numbers Natural set of positive Real Integers Numbers integers Numbers Whole 1, 2, 3, 4,... Numbers Irrational Zero Numbers Zero – represents absence of quantity 0 ENITV12D INTERVENTION FOR CALCULUS-DRAFTING Algebra: Real Numbers, Exponents and Polynomials The Real Number System ▪ Real Numbers Set Symbol Examples 1 1 Rational Numbers Q , 0.75, −3, 2 3 Integers Z −4, −3, −2, −1, 0, 1, 2, 3, 4,.. Whole Numbers W 0, 1, 2, 3, 4,... Natural Numbers N 1, 2, 3, 4,... ENITV12D INTERVENTION FOR CALCULUS-DRAFTING Algebra: Real Numbers, Exponents and Polynomials The Real Number System Examples Numbers Set Numbers Set 10 Q, Z, W, N 13 Irrational Number -6 Q, Z − 4 Q, Z 0 Q, Z, W 0.01 Q 3.14 Q 0.2525 Q 1 0.1666 Q Q 4 ENITV12D INTERVENTION FOR CALCULUS-DRAFTING Algebra: Real Numbers, Exponents and Polynomials The Real Number System ▪ Properties of Real Numbers Property Addition Subtraction Multiplication Division Closure 𝑎+𝑏∈𝑅 𝑎−𝑏∈𝑅 𝑎𝑥𝑏∈𝑅 𝑎/𝑏 ∈ 𝑅 except 0 Commutative 𝑎+𝑏 =𝑏+𝑎 𝑎−𝑏 ≠𝑏−𝑎 𝑎𝑥𝑏=𝑏𝑥𝑎 𝑎/𝑏 ≠ 𝑏/𝑎 𝑎 𝑏 Associative 𝑎 + 𝑏 + 𝑐 = 𝑎 + (𝑏 + 𝑐) 𝑎 − 𝑏 − 𝑐 ≠ 𝑎 − (𝑏 − 𝑐) 𝑎 𝑥 𝑏 𝑥 𝑐 = 𝑎 𝑥 (𝑏 𝑥 𝑐) /𝑐 ≠ 𝑎/ 𝑏 𝑐 Distributive N/A N/A 𝑎 𝑏 + 𝑐 = 𝑎𝑏 + (𝑎𝑐) N/A Identity 𝑎+0=𝑎 N/A 𝑎𝑥1=𝑎 𝑎/1= 𝑎 1 Inverse 𝑎 + (−𝑎) = 0 N/A 𝑎 =1 N/A 𝑎 ENITV12D INTERVENTION FOR CALCULUS-DRAFTING Algebra: Real Numbers, Exponents and Polynomials The Real Number System ▪ Properties of Negative Real Numbers Property Example Less than Zero −3 < 0 Greater than Negative Infinity −5 > −∝ Sum of Two Negatives −2 + −3 = −5 Sum of Negative and Positive −2 + 3 = 1 Difference of Two Negatives −2 − −3 = 1 Difference of Negative and Positive −2 − 3 = −5 ENITV12D INTERVENTION FOR CALCULUS-DRAFTING Algebra: Real Numbers, Exponents and Polynomials The Real Number System ▪ Properties of Negative Real Numbers Property Example Product of Two Negatives −2 𝑥 −3 = 6 Product of Negative and Positive −2 𝑥 3 = −6 Quotient of Two Negatives −6 / −3 = 2 Quotient of Negative and Positive −6/3 = −2 Absolute Value −3 + −1 = 4 Negative of Negative −(−3) = 3 ENITV12D INTERVENTION FOR CALCULUS-DRAFTING Algebra: Real Numbers, Exponents and Polynomials The Real Number System ▪ Properties of Equality Real Numbers Property Example Reflexive 𝑎=𝑎 Symmetric 𝑖𝑓 𝑎 = 𝑏, 𝑡ℎ𝑒𝑛 𝑏 = 𝑎 Transitive 𝑖𝑓 𝑎 = 𝑏 𝑎𝑛𝑑 𝑏 = 𝑐, 𝑡ℎ𝑒𝑛 𝑎 = 𝑐 Substitution 𝑖𝑓 𝑎 = 𝑏, 𝑡ℎ𝑒𝑛 𝑎 𝑐𝑎𝑛 𝑏𝑒 𝑟𝑒𝑝𝑙𝑎𝑐𝑒𝑑 𝑏𝑦 𝑏 ENITV12D INTERVENTION FOR CALCULUS-DRAFTING Algebra: Real Numbers, Exponents and Polynomials The Real Number System ▪ Properties of Inequality Real Numbers Property Example Trichotomy 𝑎𝑚𝑜𝑛𝑔 𝑎 < 𝑏, 𝑏 < 𝑎, 𝑎𝑛𝑑 𝑎 = 𝑏, 𝑜𝑛𝑙𝑦 𝑜𝑛𝑒 𝑖𝑠 𝑡𝑟𝑢𝑒 Symmetric 𝑖𝑓 𝑎 > 𝑏, 𝑡ℎ𝑒𝑛 𝑏 < 𝑎 Transitive 𝑖𝑓 𝑎 ≤ 𝑏 𝑎𝑛𝑑 𝑏 ≤ 𝑐, 𝑡ℎ𝑒𝑛 𝑎 ≤ 𝑐 Compound 𝑖𝑓 𝑎 < 𝑥 < 𝑏, 𝑡ℎ𝑒𝑛 𝑥 𝑖𝑠 𝑏𝑒𝑡𝑤𝑒𝑒𝑛 𝑎 𝑎𝑛𝑑 𝑏 ENITV12D INTERVENTION FOR CALCULUS-DRAFTING Algebra: Real Numbers, Exponents and Polynomials The Real Number System ▪ Sample Problems Perform the indicated operations on real numbers. a. −3 + (−5)2 b. −3 − 8 ENITV12D INTERVENTION FOR CALCULUS-DRAFTING Algebra: Real Numbers, Exponents and Polynomials The Real Number System ▪ Sample Problems Perform the indicated operations on real numbers. c. 3 (−2)3 d. −2 3 4 /2 ENITV12D INTERVENTION FOR CALCULUS-DRAFTING Algebra: Real Numbers, Exponents and Polynomials The Real Number System ▪ Sample Problems Perform the indicated operations on real numbers. e. 3 (−2 + 5)2 +(6 − 3)/(8 − 2) f. 12(−4) + 5(2) ENITV12D INTERVENTION FOR CALCULUS-DRAFTING Algebra: Real Numbers, Exponents and Polynomials The Real Number System ▪ Sample Problems Find the perimeter and area of the plane figure. a. 𝑎 = 62 + 10 𝑎 𝑏 = 16 + 20 𝑏 ENITV12D INTERVENTION FOR CALCULUS-DRAFTING Algebra: Real Numbers, Exponents and Polynomials The Real Number System ▪ Sample Problems Find the perimeter and area of the plane figure. b. 𝑎 = 72 − 9 𝑎 𝑏 = −3 + 25 𝑐 = 4 + 35 𝑐 𝑏 ENITV12D INTERVENTION FOR CALCULUS-DRAFTING Algebra: Real Numbers, Exponents and Polynomials The Real Number System ▪ Sample Problems Find the perimeter and area of the plane figure. 3 c. 𝑎 = 216 𝑎 ENITV12D INTERVENTION FOR CALCULUS-DRAFTING

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