Trigonometry of Right Triangles - Cal State LA

sin"= 3 5 ! cos"= 4 5 ! tan"= 3 4 ! cot"= 4 3 ! sec"= 5 4 ! csc"= 5 3 (b) Using the given right triangle, evaluate ! sin" and ! cos". Solution: Using now the angle ! instead, we obtain ! sin"= 4 5 ! cos"= 3 5 Note. The trigonometric ratios depend on which acute angle is used. Example 7. Using the information from the given right triangle ... ................
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