Mathematical reasoning | 10 |
1. What does it imply? | 10 |
2. The pigeonhole principle | 21 |
3. Arrangement (ordering) problems | 29 |
4. Picking problems | 32 |
Computing the root | 36 |
1. Rational numbers, irrational numbers | 36 |
2. The identities (laws) of the square root | 40 |
3. Applying the identities (laws) of the square root | 44 |
4. The nth root of numbers | 50 |
5. The identities (laws) of the nth root . | 53 |
The quadratic equation | 60 |
1. The quadratic equation and function | 60 |
2. The quadratic formula | 64 |
3. The zero product form. The relation between the roots and the coefficients | 69 |
4. Equations of higher degree which can be reduced to quadratic equations | 74 |
5. Quadratic inequalities | 80 |
6. Parametric quadratic equations (higher level courseware) | 84 |
7. Equations involving square roots | 90 |
8. Quadratic simultaneous equations | 96 |
9. Arithmetic and geometric mean | 101 |
10. Extreme value exercises (higher level courseware) | 106 |
11. Problems leading to quadratic equations | 110 |
Geometry | 116 |
Widening the knowledge about circles | 116 |
1. Reminder | 116 |
2. The theorem of the central and inscribed/tangent-chord angles | 117 |
3. The theorem of inscribed angles; the arc of viewing angles | 121 |
4. The theorem of inscribed quadrilaterals (higher level courseware) | 125 |
The similarity transformation and its applications | 129 |
1. Parallel intercepting lines, parallel intercepting line segments (higher level courseware) | 129 |
2. The angle bisector theorem (higher level courseware) | 135 |
3. The transformation of central dilation (or homothety) | 137 |
4. The similarity transformation | 141 |
5. Similarity of figures; the simple cases of similar triangles | 143 |
6. A few applications of similarity | 147 |
7. The ratio of the area of similar planar figures | 154 |
8. The ratio of the volume of similar solids | 158 |
Trigonometric functions of acute angles | 161 |
1. Determining distances with the help of similarity | 161 |
2. Trigonometric functions of acute angles | 164 |
3. Relations between the trigonometric functions of acute angles | 168 |
4. Trigonometric functions of special angles | 172 |
5. Determining several data of a triangle with the help of trigonometric functions | 175 |
6. Calculations in the plane and in space with the help of trigonometric functions | 180 |
Vectors | 184 |
1. The concept of a vector; the sum and the difference of vectors; scalar multiplication of vectors (reminder) | 184 |
2. Expressing vectors as the sum of components in different directions | 188 |
3. Applying vectors in the plane and in space | 194 |
4. Vectors in the coordinate system, the coordinates of a vector, operations with vectors given with coordinates | 199 |
Trigonometric functions | 204 |
1. The definition and the simple properties of the sine and the cosine function | 204 |
2. The graph of the sine function | 209 |
3. The graph of the cosine function, equations, inequalities | 214 |
4. The tangent and the cotangent function | 221 |
5. Compound exercises and applications . | 228 |
6. Geometric applications | 232 |
Calculation of probability | 238 |
1. Events | 238 |
2. Operations with events | 243 |
3. Experiments, frequency, relative frequency, probability | 248 |
4. The classical model of probability .. | 251 |