What does open circle mean in math

What does the open circle mean in math? An open circle means the function is not defined at that point. When graphing the interval 0 ≤ x < 1, you would put a filled-in circle at x=0 and an open

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Basic Linear Inequalities

It means composition, for Instance g ( x) = x 2 and f ( x) = − 1 / x . So g ( f ( x)) = ( − 1 / x) 2 = 1 x 2 and f ( g ( x)) = − 1 x 2. This should have been a comment. You fail to notice
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What does the small circle symbol in (f◦g)(x) mean

What Does Open Circle Mean in Math? While some students prefer to concentrate on theoretical mathematical subjects, other students would rather focus on a practical side of their studies.

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Basic Linear Inequalities

An open circle means the function is not defined at that point. When graphing the interval 0 ≤ x < 1, you would put a filled-in circle at x=0 and an open circle at x=1, indicating x=1

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