Complex numbers

Fact-checked: February 16, 2026

Basics

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.

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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