dalesha18
nUse 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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jdoe0001
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would you say that tangent = sine/cosine? check your trig identities
dalesha18
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huh
jdoe0001
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do you have a trigonometry sheet with basic trigonometric identities?
dalesha18
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no
jdoe0001
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hmm, do you have a Unit Circle?
dalesha18
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lol no
wolfe8
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Alright so in a right angle triangle, one angle is 90, so the other two would sum up to another 90. If you can rearrange the equation, and apply trigonometry to it, you should get it. It would help to sketch and lable too.
jdoe0001
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hmmm... so, how are you expected to do that? a magic 8-ball?
dalesha18
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ooo ok I get it now
wolfe8
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|dw:1378753879171:dw|
dalesha18
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hmmmm no I didn't that @jdoe0001
dalesha18
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anyways thanx @wolfe8
wolfe8
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No problem hope that helped