log arcsin x 2 x lim x 0 2 1 log 2 1 log cos x log 3n n3 1 80 79 40 80 lim 1 1 2 n n n n 4 4 n 4 2 n lim n sin n 7 n n n2 n7 7 n 1 x3 lim x 0 1 x 2 80 log 3 3 7 arctan 1 n 7 1 x 2 1 cos2 x 2 lim log 8 x 4 x 2 x 1 cot x x e x6 x 3 x6 x 3 42 16 2 3 3 log 2 2 x lim x 1 lim x 1 neex. 1 cos 2 x 1 cos x log cos x 1 log cos x 3 tan x 3 sin x 3 x 2 sin x 3 4 32 2 log 2 2
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