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OpenStudy (destiny_forever):
Please help?!? What is the relationship between the sine and cosine of the complementary angles? How do you know it's true? I don't know even where to start. Someone help me.
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OpenStudy (triciaal):
first do you know what are complementary angles?
OpenStudy (triciaal):
do you know how to find the ratios, sin, cos, tan etc
OpenStudy (triciaal):
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