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[" 6."(cos11^(@)-sin11^(@))/(cos11^(@)+s...

[" 6."(cos11^(@)-sin11^(@))/(cos11^(@)+sin11^(@))" is equal to: "],[[" (a) "cot56^(@)," (b) "tan11^(@)],[" (c) "tan56^(@)," (d) "cot11^(@)]]

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