X 



Natural Tangents. 





( °' 



10' 



20' 



( 30' 







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JJeg 



0' 



10' 



20' 



30' 



40' 



f 50' 



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9325 





9380 





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9601 



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17 



33 



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54 



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7400 



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1653 



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13 



37 



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3315 



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5107 



4- 



5736 



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6382 



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7813 



7860 



7907 



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8050 



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78 



4.7046 



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7729 



4-8430 



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39 



8098 



8146 



8195 



8243 



8292 



8342 



50 



79 



5- 1446 



5- 



2257 



5- 



3093 



5. 



3955 



5.4845 



5.5704 



10 



Deg. 



60' 



50' 



40' 



30' 



20' 



"10' 



Degj 



Deg. 



60' 



50' 



40' 



30' 



20' 



10' J 



Deg^ 



Deg. 



0' 



10' 



20' 



30' 



40' 



50' 



Peg. 



80 



5 6713 



5.7694 



5.8708 



5.9758 



6.0844 



6. 1970 



9 



81 



6.3138 



6.4348 



6. 5606 



6. 6912 



6.8269 



6.9682 



8 



82 



7- 1154 



7. 2687 



7.4287 



7.5958 



7.7704 



7.9530 



7 



83 



8 . 1443 



8 . 3450 



8.5555 



8.7769 



9.0098 



9-2S53 



6 



84 



9.5144 



9.7882 



10.078 



10.385 



10. 711 



11.059 



5 



85 



11.430 



11.826 



12. 250 



12. 706 



13.197 



13.727 



4 



86 



14-300 



14.924 



15.605 



16.350 



17. 169 



18.075 



3 



87 



19.081 



20. 206 



21.470 



22.903 



24.542 



26.432 



2 



88 



28.636 



31.242 



34.368 



38.189 



42 . 964 



49. 104 



I 



89 



57.290 



68.750 



85.940 



114.588 



171.885 



343-77 



O 



Deg. 



60' 



50' 



40' 



30' 



20' 



10' 



Dei! 



Natural Cotangents, 



