Question: Which of the following is not correct? optom O sin'x+ cosx = 1 sinh?x - coshx = 1 O coshx - sinhx = 1

Which of the following is not correct? optom O sin'x+ cosx = 

Which of the following is not correct? optom O sin'x+ cosx = 1 sinh?x - coshx = 1 O coshx - sinhx = 1 O tanh?x+ sechx= 1 Ce Repene

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