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Mathematics 10 Online
OpenStudy (colouringme):

When is tan x = cot x

terenzreignz (terenzreignz):

Try to express both sides of the equation in terms of sine and cosine.

OpenStudy (colouringme):

thanks for your help, but I think it will be more difficult if I express it in terms of sine and cosine. The q suppose to be tan 3x = cot x , it was my mistake, but thank you for your help. I've found the answer (:

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