Alex au pays des chiffres (French Edition) by Alex Bellos

By Alex Bellos

Show description

Read Online or Download Alex au pays des chiffres (French Edition) PDF

Best elementary books

The Art of Problem Posing

The recent variation of this vintage booklet describes and gives a myriad of examples of the relationships among challenge posing and challenge fixing, and explores the tutorial strength of integrating those actions in study rooms in any respect degrees. The artwork of challenge Posing, 3rd version encourages readers to shift their pondering challenge posing (such as the place difficulties come from, what to do with them, and so on) from the "other" to themselves and gives a broader notion of what might be performed with difficulties.

Calculus: Early Transcendentals , 1st Edition

Taking a clean process whereas holding vintage presentation, the Tan Calculus sequence makes use of a transparent, concise writing kind, and makes use of appropriate, actual international examples to introduce summary mathematical thoughts with an intuitive method. based on this emphasis on conceptual figuring out, each one workout set within the 3 semester Calculus textual content starts with notion questions and every end-of-chapter overview part contains fill-in-the-blank questions that are helpful for studying the definitions and theorems in every one bankruptcy.

Additional info for Alex au pays des chiffres (French Edition)

Sample text

107. 109. 111. 113. 114. 115. 116. 117. 118. 119. (b) a is shown in the following figure. x x x x x 1 1 1 1 1 x (a) x x 1 b b (c) a a a a b b b b b (d) b b 1 1 1 1 b 121. 122. 123. 124. a 2 Ϫ b 2 ϭ ͑a ϩ b͒͑a Ϫ b͒ a 2 ϩ 2ab ϩ b 2 ϭ ͑a ϩ b͒ 2 a 2 ϩ 2a ϩ 1 ϭ ͑a ϩ 1͒ 2 ab ϩ a ϩ b ϩ 1 ϭ ͑a ϩ 1͒͑b ϩ 1͒ x 125. 126. 127. 128. 3x 2 ϩ 7x ϩ 2 ϭ ͑3x ϩ 1͒͑x ϩ 2͒ x 2 ϩ 4x ϩ 3 ϭ ͑x ϩ 3͒͑x ϩ 1͒ 2x 2 ϩ 7x ϩ 3 ϭ ͑2x ϩ 1͒͑x ϩ 3͒ x 2 ϩ 3x ϩ 2 ϭ ͑x ϩ 2͒͑x ϩ 1͒ 1 GEOMETRY In Exercises 129–132, write an expression in factored form for the area of the shaded portion of the figure.

5 x3 ϩ x2 Ϫ x Ϫ 5 4 x ϩ 3x ϩ 4 x ϩ 9 ͑t Ϫ 1͒ 2 Ϫ 49 108. ͑x 2 ϩ 1͒ 2 Ϫ 4x 2 ͑x 2 ϩ 8͒ 2 Ϫ 36x 2 110. 2t 3 Ϫ 16 5x 3 ϩ 40 112. 4x͑2x Ϫ 1͒ ϩ ͑2x Ϫ 1͒ 2 5͑3 Ϫ 4x͒ 2 Ϫ 8͑3 Ϫ 4x͒͑5x Ϫ 1͒ 2͑x ϩ 1͒͑x Ϫ 3͒ 2 Ϫ 3͑x ϩ 1͒ 2͑x Ϫ 3͒ 7͑3x ϩ 2͒ 2͑1 Ϫ x͒ 2 ϩ ͑3x ϩ 2͒͑1 Ϫ x͒3 7x͑2͒͑x 2 ϩ 1͒͑2x͒ Ϫ ͑x2 ϩ 1͒ 2͑7͒ 3͑x Ϫ 2͒2͑x ϩ 1͒4 ϩ ͑x Ϫ 2͒ 3͑4͒͑x ϩ 1͒ 3 2x͑x Ϫ 5͒ 4 Ϫ x 2͑4͒͑x Ϫ 5͒ 3 5͑x6 ϩ 1͒4͑6x5͒͑3x ϩ 2͒3 ϩ 3͑3x ϩ 2͒2͑3͒͑x6 ϩ 1͒5 x2 120. ͑x2 ϩ 1͒4 Ϫ ͑x 2 ϩ 1͒5 2 89. 91. 93. 95. 97. 99. 101. 103. 105. 107. 109. 111.

58. 59. 60. 61. 62. Add Ϫ ϩ 8 and Ϫ 4. 5 3 Add 2x Ϫ 3x ϩ 2x ϩ 3 and 4x 3 ϩ x Ϫ 6. Subtract x Ϫ 3 from 5x 2 Ϫ 3x ϩ 8. 6t 4 Ϫ 2t 2. Multiply ͑x ϩ 7͒ and ͑2x ϩ 3͒. Multiply ͑3x ϩ 1͒ and ͑x Ϫ 5͒. Multiply ͑x2 ϩ 2x ϩ 3͒ and ͑x2 Ϫ 2x ϩ 3͒. Multiply ͑x2 ϩ x Ϫ 4͒ and ͑x2 Ϫ 2x ϩ 1͒. 7x 3 2x 2 Ϫ3x3 In Exercises 63–100, multiply or find the special product. 63. 65. 67. 69. 71. 73. 75. 77. 79. 80. 81. 82. 83. 84. 85. 87. 89. 91. 93. 94. 95. 96. 97. 98. 99. 100. ͑x ϩ 3͒͑x ϩ 4͒ 64. ͑x Ϫ 5͒͑x ϩ 10͒ ͑3x Ϫ 5͒͑2x ϩ 1͒ 66.

Download PDF sample

Rated 4.49 of 5 – based on 12 votes