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I have a trigonometry question...

I have a trigonometry question. I have worked w/ Suryanto in the past. I don't know if he can help w/ this question.

I need to evaluate the following, without using a calculator:

tan(arcsin3/5 + arccos5/7)

I need to evaluate the following, without using a calculator:

tan(arcsin3/5 + arccos5/7)

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