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OpenStudy (anonymous):
Use the definitions of the trigonometric ratios for a right triangle to derive a cofunction identity for tan(90° - A). Show your steps.
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OpenStudy (anonymous):
|dw:1365734626527:dw|
OpenStudy (anonymous):
\[\tan(90-A)=\frac{a}{b}=\cot(A)\]
OpenStudy (anonymous):
thanks!
OpenStudy (anonymous):
yw
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