CD_ONLY_Ans_Revision.pdf

CD_ONLY_Ans_Revision.pdf - Answers to Revision Exercises...

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1 1 a b 2 3 37.1m 4 a 19.7m b 105° c 7.00mm d 114° 5 or 6 a b c d B ˆ 18 ° B ˆ 88.4 ° 7.34 cm 2 7 p 6 7 p 4 Answers to Revision Exercises 7 a b 8 a b c 9 10 a 3.46m b 0100 10 c x 1.08 p 8 , 5 p 8 p 3 , 2 p 3 7 p 18 , 11 p 18 y 3 cos 2 u 3 y 2 sin 4 u 0 4 4 y 60 360 x 0 3 2 3 y 0 1 1 y 2 0 5 9 y 2 3 2 Functions 1 2 3 (1,4) or 4 or 5 a b c 6 a b c d x 4 x 7 4 x 3 x 5 x 9 x 1 1 x 4 x 2 x 2 4 x 2 6 x 2 16 x 2 4 x 4 k 24 k 0 ¢ 29 8 , 5 8 k 2 1 2 6 x 6 5 0 12 4 4 y t 12 13 14 2 18 cos 1 2 x 70.5 2 ° , x 45 ° , 64.5 ° 2 74 370 u 0.253, 2.89, 3 p 2 7 a b x y y |f ( x )| 0 8 3 x y 0 24 y |f ( x )| 8 9 10 a b 11 12 and 13 14 15 16 17 a 1, b 4 x 3 x 2 2 x 1 R 5 y 2 1 x 2 2 2 1 x 3 2 x 6, x 5 1 2 x 1 2 1 x 4 2 1 x 1 2 1 x 1 2 x 1 2 x 3 7 x 1 3 f 1 1 x 2 1 3 x x 2 0 6 y 6 2 x 5 12 x 4 3 , x 6 18 a b c 19 a b c 1 20 a b c d 21 a b c 22 23 24 Complex Numbers, Binomial Theorem, Sequences and Induction 1 2 4 5 6 7 8 a b 8 c 8 c 9 10 40824 12 a b c 15 16 a b c 64 2 e i p 6 x 4 12 x 3 54 x 2 108 x 81 x 3 10 x 24 0 n 11 a 4, r 3 n 10 z 5 1 z 4 cos ¢ 4 p 5 i sin ¢ 4 p 5 z 3 cos ¢ 2 p 5 i sin ¢ 2 p 5 z 2 cos ¢ 4 p 5 i
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