If f(x) is a function defined on the closed interval [a , b] such that f(a) 0 , then the function f must have at least one zero in the interval [a , b].

Question

If f(x) is a function defined on the closed interval [a , b] such that f(a) < 0 and f(b) > 0 , then the function f must have at least one zero in the interval [a , b].

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The Answer of If f(x) is a function defined on the closed interval [a , b] such that f(a) < 0 and f(b) > 0 , then the function f must have at least one zero in the interval [a , b].

If F(x) Is a Function Defined on the Closed Interval