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arrow2589
Jun 12, 2012, 11:43 PM
Confirm that sin(x)=sec(x)/(cot(x)+tan(x))

ebaines
Jun 13, 2012, 05:56 AM
Convert the sec, tan, and cot functions to their sine and cosine equivalents. Then simplify the resulting fraction. As is often the case it helps to remember that sin^2x + cos^2x = 1