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Evaluate the following expressions. The answer must be given as a fraction, NO DECIMALS. If the answer involves a square root it should be entered as sqrt. For instance, the square root of 2 should be written as sqrt(2).If tan (?) = -9/7 and sin(?)<0, then find(a) sin(?)(b) cos(?)(c) sec (?)(d) csc(?)(e) cot(?)
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