Mathematic Methods HW Solutions 5

Mathematic Methods HW Solutions 5 - Chapter 2 x y 4.1 4.2...

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Chapter 2 x y r θ 4.1 1 1 2 π/ 4 4.2 - 1 1 2 3 π/ 4 4.3 1 - 3 2 - π/ 3 4.4 - 3 1 2 5 π/ 6 4.5 0 2 2 π/ 2 4.6 0 - 4 4 - π/ 2 4.7 - 1 0 1 π 4.8 3 0 3 0 4.9 - 2 2 2 2 3 π/ 4 4.10 2 - 2 2 2 - π/ 4 4.11 3 1 2 π/ 6 4.12 - 2 - 2 3 4 - 2 π/ 3 4.13 0 - 1 1 3 π/ 2 4.14 2 2 2 π/ 4 4.15 - 1 0 1 - π or π 4.16 5 0 5 0 4.17 1 - 1 2 - π/ 4 4.18 0 3 3 π/ 2 4.19 4 . 69 1 . 71 5 20 = 0 . 35 4.20 - 2 . 39 - 6 . 58 7 - 110 = - 1 . 92 5.1 1 / 2 - 1 / 2 1 / 2 - π/ 4 5.2 - 1 / 2 - 1 / 2 1 / 2 - 3 π/ 4 or 5 π/ 4 5.3 1 0 1 0 5.4 0 2 2 π/ 2 5.5 2 2 3 4 π/ 3 5.6 - 1 0 1 π 5.7 7 / 5 - 1 / 5 2 - 8 . 13 = - 0 . 14 5.8 1 . 6 - 2 . 7 3 . 14 - 59 . 3 = - 1 . 04 5.9 - 10 . 4 22 . 7 25 2 = 114 . 6 5.10 - 25 / 17 19 / 17 r 58 / 17 142 . 8 = 2 . 49 5.11 17 - 12 20 . 8 - 35 . 2 = - 0 . 615 5.12 2 . 65 1 . 41 3 28 = 0 . 49 5.13 1 . 55 4 . 76 5 2 π/
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