Sooraj S

Member for 8 years, 8 months
Last seen this week

[email protected]
India

Summary

Reputation

7,495

7.5k
5.9k
4.4k

2020
2021
2022
2023

Top tag

trigonometry

Next privilege

10,000 Rep.

Access moderator tools

Badges

4

42

81

Newest

Notable Question

Next badge

1/100

Fanatic

Questions

View all 390 questions

Score Activity Newest Views

11

Prove that $\begin{vmatrix} xa&yb&zc\\ yc&za&xb\\ zb&xc&ya\\ \end{vmatrix}=xyz\begin{vmatrix} a&b&c\\ c&a&b\\ b&c&a\\ \end{vmatrix}$ if $x+y+z=0$

Mar 4, 2018

11

Find $\frac{1}{1.2.3.4}+\frac{4}{3.4.5.6}+\frac{9}{5.6.7.8}+\frac{16}{7.8.9.10}+\dots$

Jun 27, 2019

8

Find $a_n:a_{n+1}$ if $a_n=\int_0^{\pi/2}\cos^nx.\cos nx.dx$

Jan 10, 2020

8

Evaluate $\int_0^1x(\tan^{-1}x)^2~\textrm{d}x$

May 24, 2018

7

Integrate $\sin^{-1}\frac{2x}{1+x^2}$

May 15, 2018

Answers

View all 57 answers

Score Activity Newest

9

Computing the integral of $\log(\sin x)$

Jun 1, 2018

7

Determine the number of equivalence relations on the set {1, 2, 3, 4}

Jan 2, 2018

6

How was the normal distribution derived?

Apr 21, 2020

5

Proofs of AM-GM inequality

Feb 20, 2018

5

Proof for the formula of sum of arcsine functions $ \arcsin x + \arcsin y $

Dec 6, 2018

Tags

View all 180 tags

trigonometry

24

Score

83

posts

integration

14

Score

51

posts

calculus

12

Score

50

posts

statistics

12

Score

14

posts

linear-algebra

10

Score

82

posts

Reputation

+10

Multiplicative inverse of $n+1$ modulo $n^2$

+10

Stirling's formula: proof?

+10

Coefficient of the Highest Degree in the Power Series Solution to Legendre's Differential Equation

+10

Probability that $x_i<p<x_j$ given $X={x_1,\cdots,x_n}$ and $P(p=x_k)=1/n$

Badges

View all badges

4

gold badges

Socratic

× 2

Aug 2, 2021
Famous Question

× 2

Sep 29

42

silver badges

Inquisitive

Jan 20, 2018
Civic Duty

Feb 8, 2019
Enthusiast

Dec 4, 2017

81

bronze badges

Self-Learner

May 12, 2021
Cleanup

Jan 17, 2020
Excavator

Oct 11, 2015

Accounts

View all 16 accounts

7,495
4
42
81

1,101
2
16
29

Quantum Computing

791
3
14

311
1
9

235
2
7

Active bounties (0)

Active Offered Earned

This user has no active bounties

Votes cast

570

upvotes

13

downvotes

144

question votes

439

answer votes