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# EvenAnswersChap7 - EVEN ANSWERS Chapter 7 7.2 3 n 4 20 = 30...

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1 EVEN ANSWERS, Chapter 7 7.2: 20) 3 4 n π θ π = + 30) 2 t n π π = + 42) 2 4 , , 3 3 t π π π = 48) no solution 50) 3 0, 2 π θ = 7.3: 2) ) cot 65 48 ) cos19 ) sin 6 ) tan 28.13 a b c d π ringoperator ringoperator 6) 3 2 ) 2 6 2 ) 4 a b + - 10) 3 3 ) 3 ) 2 3 a b - - - - 12) cos63 ringoperator 14) sin 61 ringoperator 18) 63 ) 65 63 ) 16 ) a b c QII - 20)

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2 3 ) 5 4 ) 5 3 ) 4 117 ) 125 44 ) 125 117 ) 44 a b c d e f - - 22) 2 2 10 ) 0.92 9 2 2 10 ) 2.43 5 4 2 ) a b c QIII - - ≈ - - - - 40) Identify could be verfied in different ways. 7.4: 2) 24 ) 25 7 ) 25 24 ) 7 a b c 4) 24 ) 25 7 ) 25 24 ) 7 a b c - - 14) There are different ways the identity could be verified. 22) There are different ways the identity could be verified. 46) 3 3 11 7
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