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# l2. trigonometric function

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### l2. trigonometric function

1. 1. Trigonometric Ratios of Special Angles ο  Find the trigonometric ratios of special angles
2. 2. Lets play TRIGπ
4. 4. π
5. 5. π
6. 6. Use a protractor to find the measures of the angles of each triangle
7. 7. 1.β π΄ =______ 2. β π΅ =______ 3. β πΆ =______ 1. β π· =______ 2. β πΈ =______ 3. β πΉ =______ 1. β πΏ =______ 2. β π =_____ 3. β π =_____
8. 8. The following sides of special right triangles are related as follows:
9. 9. 45Β° β 45Β° β 90Β° Triangle Theorem οΆthe legs are congruent οΆthe length of the hypotenuse is times the length of a leg οΆhypotenuse = leg
10. 10. 30Β°β 60Β° β 90Β° Triangle Theorem οΆ the length of the hypotenuse is twice the length of the shorter leg οΆ the length of the longer leg is times the length of the shorter leg οΆ hypotenuse = 2 shorter leg οΆ longer leg = shorter leg
11. 11. Example 1 π = 2 β 8 π = 8 2
12. 12. Example 2
13. 13. Angles Ratios 0Β° 30Β° 45Β° 60Β° 90Β° sinπ½ ππππ½ ππππ½ ππππ½ ππππ½ ππππ½
14. 14. Angles Ratios 0Β° 30Β° 45Β° 60Β° 90Β° sinπ½ π π π π π π π π ππππ½ π π π π π π π π ππππ½ π π π π π ππππππππ ππππ½ ππππππππ π π π π π ππππ½ π π π π π ππππππππ ππππ½ ππππππππ π π π π
• #### CrisCapangpangan

Mar. 10, 2020
• #### MonavicTorres

Jan. 31, 2020
• #### catherineclaureano

Jan. 23, 2020
• #### TitaApoloniaMagno

Feb. 19, 2019

Dec. 26, 2018

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