Question: I need help on this question Find the exact value of the expression. -1 12 tan sin 13 - cos - 1(-1) tan sin -

I need help on this question

Find the exact value of the expression. -1 12 tan sin 13 - cos - 1(-1) tan sin - 1 12 13 cos -1 (-1) = (Type an exact answer in simplified form.)
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