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For what values of x is tanh x positive

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Reference no: EM131602812

Question: (a) Find tanh 0.

(b) For what values of x is tanh x positive? Negative? Explain your answer algebraically.

(c) On what intervals istanh x increasing? Decreasing? Use derivatives to explain your answer.

(d) Find limx→∞ tanh x and limx→-∞ tanh x. Show this information on a graph.

(e) Does tanh x have an inverse? Justify your answer using derivatives.

Reference no: EM131602812

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