Usually none. A function can be identified as f but it is more often denoted by f(x) to show that it is a function of x.
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5x = 125 3x = 27 1/3 x 4x = 64/3
Given a function sequence f1(x), f2(x), f3(x)..., the limit can be defined in several ways: - Point by point limit; that is, it converges to a new function at each point. - Lp convergence; that is, it converges to a new function in Lp-norm. - Almost everywhere convergent; that is, it converges to a new function except a set with measure zero.
Not every relation is a function. But every function is a relation. Function is just a part of relation.
The cubic function.
Range