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Find the exact value of the expression. Use sum or difference formula to find the exact value. sin 255 0 -21 3+1) 4 0 21413+

Find the exact value of the expression. Use sum or difference formula to find the exact value. sin 255 0 -21 3+1) 4 0 21413+ 1) 0 1 213-1) 4 0 -( 2(13-1) 4

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