Pre-Calculus Homework Solutions 225

Pre-Calculus Homework Solutions 225 - mL mM 23 18.6 sin N n...

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m / L 1 m / M 1 m / N 5 ¬ 180 23 1 18.6 1 m / N < ¬ 180 m / N < ¬ 138.4 } sin n N } 5 ¬ } sin , L } } sin1 n 38.4° } 5 ¬ } sin 5 2 4 } 54sin138.4° 5 ¬ n sin23° } 54s s i i n n 1 2 3 3 8 ° .4° } 5 ¬ n 91.8 < ¬ n 28. m 2 5 ¬ , 2 1 n 2 2 2 , n cos M 18 2 5 ¬ 24 2 1 30 2 2 2(24)(30)cos M 324 5 ¬ 1476 2 1440cos M 2 1152 5 ¬ 2 1440cos M } 2 2 1 1 1 4 5 4 2 0 } 5 cos M M 5 ¬ cos 2 1 1 } 1 1 1 4 5 4 2 0 } 2 M < ¬ 36.9° } si m n M } 5 ¬ } sin , L } } sin 1 3 8 6.9° } 5 ¬ } si 2 n 4 L } 24sin36.9° 5 ¬ 18sin L } 24si 1 n 8 36.9° } 5 ¬ sin L sin 2 1 1 } 24si 1 n 8 36.9° } 2 5 ¬ L 53.2° < ¬ L m / L 1 m / M 1 m / N 5 ¬ 180 53.2 1 36.9 1 m / N < ¬ 180 m / N < ¬ 89.9 29. , 2 5 ¬ m 2 1 n 2 2 2 mn cos L , 2 5 ¬ 19 2 1 28 2 2 2(19)(28)cos49° , 2 5 ¬ 1145 2 1064cos49° , 5 ¬ Ï 1145 2 w 1064 w cos49 w ° w , < ¬ 21.1 } sin , L } 5 ¬ } si m n M } } si 2 n 1 4 .1 } 5 ¬ } si 1 n 9 M } 19sin49° 5 ¬ 21.1sin M } 19 2 s 1 in .1 49° } 5 ¬ sin M sin 2 1 1 } 19 2 si
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