Mathematics
Rezha Adrian Tanuharja's user avatar
Rezha Adrian Tanuharja's user avatar
Rezha Adrian Tanuharja's user avatar
Rezha Adrian Tanuharja
  • Member for 3 years, 7 months
  • Last seen this week
  • Indonesia / Germany
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About

Mechanical engineer who is passionate about mathematics and problem solving.

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All Questions Answers
Score Newest
answer
13
Given that $x_0$ is a real root of $x^3+px + q = 0$, how can I show that $p^2 \geq 4x_0q$?
Aug 1, 2020
answer
11
How find tangent line of the given curve at this point?
Mar 4, 2020
answer
11
Numbers from 1 to 10 put in a circle
Mar 15, 2020
answer
11
Is the volume of a cube the greatest among rectangular-faced shapes of the same perimeter?
Jul 29, 2020
answer
10
Show by counting two ways that $\sum_{i=1}^{n}i(n-i)=\sum_{i=1}^{n}{i\choose 2}={n+1 \choose 3}$?
Jul 29, 2020
answer
9
Olympiad Chessboard Problem
Aug 28, 2021
answer
9
how to use matrix to prove this identity?
Mar 24, 2020
answer
8
Combinatorics counting problem
Mar 28, 2020
answer
8
Geometry problem without trigonometry
Aug 4, 2021
question
7
Prove that $\sum{a^{2}bc}=\binom{n+3}{6}+\binom{n+2}{6}$
Sep 8, 2021
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