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Prove the identity. cos(-x) 1-sin(-x) secx- tanh Note that each Statement must be based on a Rule chosen from the Rule menu.

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Giyen identity Sector - 1sinf ) Lts: Caso (x) 1-Sin (-x) Casa Turing eunlodd felmulas - Esinx) | sin (0) --Sing CS-0)- Cole C

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