'Infinite series exercise 87' presentation slideshows

Exponential functions are positive : b x > 0 for all x .

Exponential functions are positive : b x > 0 for all x . The range of f ( x ) = b x is the set of all positive real numbers . f ( x ) = b x is increasing if b > 1 and decreasing if 0 < b < 1. f ( x ) = b x increases more rapidly than the power function x n for all n.

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