Intervals

By Ashok Kumar, B.E.

Fact-checked: February 16, 2026

Ashok Kumar, B.E.

Founder of Math Doubts

A Specialist in Mathematics, Physics, and Engineering with 14 years of experience helping students master complex concepts from basics to advanced levels with clarity and precision.

Story of Math Doubts

Latest Math Concepts

Jan 12, 2026

(a−b)² Formula Explained with Expansion, Proof, Examples & Uses

Jan 09, 2026

What are Factors of 2? Positive, Negative, & Factor Pairs

Jan 08, 2026

What is a Negative Factor of a number?

Oct 13, 2025

What is a Trigonometric ratio?

Sep 18, 2025

What is a Point in geometry?

Sep 13, 2025

What is a Factor in Higher mathematics?

Latest Math Questions

Jan 18, 2026

Evaluate ∫sec(2x) dx

Jan 02, 2026

Prove $\log{(1+2+3)}$ $\,=\,$ $\log{(1)}$ $+$ $\log{(2)}$ $+$ $\log{(3)}$

Oct 26, 2025

Evaluate $5\cos{x}$ $-$ $12\sin{x}$, if $5\sin{x}$ $+$ $12\cos{x}$ $=$ $13$

Oct 11, 2025

Evaluate $\displaystyle \large \lim_{x \,\to\, 0}{\normalsize \dfrac{\sqrt{1-\cos{2x}}}{x}}$

Oct 03, 2025

Evaluate $\dfrac{1}{\log_{2}{30}}$ $+$ $\dfrac{1}{\log_{3}{30}}$ $+$ $\dfrac{1}{\log_{5}{30}}$

Jul 19, 2025

Intervals

Open interval

Closed interval

Half open interval

Ashok Kumar, B.E.

Latest Math Concepts

Latest Math Questions