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New Discovering Mathematics 3A & 3B Textbook Solutions

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Book B:

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Chapter 1: More About Quadratic Equations and Quadratic Functions

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Ex 1.1: Solving quadratic equations by completing the square

Ex 1.2: Solving quadratic equations by using quadratic formula

Ex 1.3: Solving quadratic equations by using graphical method

Ex 1.4: Solving fractional equations that can be reduced to quadratic equations

Ex 1.5: Solving real-world problems involving quadratic equations

Ex 1.6: Sketching the graphs of quadratic functions

Review Ex 1

Chapter 2: More About Linear Inequalities

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Ex 2.1: Notations and basic properties of inequalities

Ex 2.2: Simultaneous linear inequalities

Ex 2.3: Applications of simultaneous linear inequalities

Review Ex 2

Chapter 3: Indices

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Ex 3.1: Positive Integer Indices and Laws of Indices 🔒 Subscribers

Ex 3.2: Zero and Negative Integer Indices 🔒 Subscribers

Ex 3.3: Fractional Indices 🔒 Subscribers

Ex 3.4: Solving Equations Involving Indices 🔒 Subscribers

Ex 3.5: Standard Form 🔒 Subscribers

Ex 3.6: Application of Indices to Compound Interest 🔒 Subscribers

Review Ex 3 🔒 Subscribers

Chapter 4: Coordinate geometry

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Ex 4.1: Gradient of a Straight Line 🔒 Subscribers

Ex 4.2: Equation of a Straight Line 🔒 Subscribers

Ex 4.3: Length of a Line Segment 🔒 Subscribers

Ex 4.4: Geometric Problems Involving the Use of Coordinates 🔒 Subscribers

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Chapter 5: Functions and Graphs

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Ex 5.1: Graphs of Power Functions 🔒 Subscribers

Ex 5.2: Graphs of Exponential Functions 🔒 Subscribers

Ex 5.3: Gradients of Curves 🔒 Subscribers

Ex 5.4: Graphs of Simple Sums of Power Functions 🔒 Subscribers

Ex 5.5: Graphs in Practical Situations 🔒 Subscribers

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Chapter 6: Conditions of Congruence and Similarity

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Ex 6.1: Congruence Tests 🔒 Subscribers

Ex 6.2: Similarity Tests 🔒 Subscribers

Ex 6.3: Ratio of Areas of Similar Plane Figures 🔒 Subscribers

Ex 6.4: Ratio of Volumes of Similar Solids 🔒 Subscribers

Ex 6.5: Perpendicular Bisectors, Angle Bisectors and Scale Drawings 🔒 Subscribers

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Revision Exercise

Revision Ex 1 🔒 Subscribers

Revision Ex 2 🔒 Subscribers

Chapter 7: Further Trigonometry

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Ex 7.1: Sine and cosine of obtuse angles 🔒 Subscribers

Ex 7.2: Formula for the area of a triangle 🔒 Subscribers

Ex 7.3: The Sine rule 🔒 Subscribers

Ex 7.4: The Cosine rule 🔒 Subscribers

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Chapter 8: Applications of Trigonometry

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Ex 8.1: Bearing problems 🔒 Subscribers

Ex 8.2: Angles of elevation and depression 🔒 Subscribers

Ex 8.3: Simple three-dimensional problems 🔒 Subscribers

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Chapter 9: Arc Lengths, Sector Areas and Radian Measure

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Ex 9.1: Arc lengths 🔒 Subscribers

Ex 9.2: Sector areas and segment areas 🔒 Subscribers

Ex 9.3: Radian measure 🔒 Subscribers

Ex 9.4: Arc length and sector area in radian measure 🔒 Subscribers

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Chapter 10: Properties of Circles

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Ex 10.1: Chords of a circle 🔒 Subscribers

Ex 10.2: Angles at the circumference 🔒 Subscribers

Ex 10.3: Angles in the same segment and opposite segments 🔒 Subscribers

Ex 10.4: Tangents to a circle 🔒 Subscribers

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Revision Exercise

Revision Ex 3 🔒 Subscribers

Revision Ex 4 🔒 Subscribers