hartnn
 Name:

 School:
 About:
 There are some secret laws to become good in maths,
1) Practice,
2) More Practice,
3) More and more practice.
Need to know 4th ? ;)
188 helpers are online right now
75% of questions are answered within 5 minutes.
Questions Asked

hartnn:
@gudden
 updated yesterday
 28 replies
 2 Medals
Mathematics

hartnn:
Found these hilarious New year wishes on social media sites!
"I don't know who you are. I don't know what you want. But if you are reading …
 updated 3 months ago
 24 replies
 22 Medals
Mathematics

hartnn:
2x^219x+24
@Laiken98
…
 updated 6 months ago
 21 replies
 1 Medal
Mathematics

hartnn:
One of our user @RolyPoly has a suggestion.
Instead of posting "swapping answers is illegal" in different groups, why don't we just add a wa…
 updated 6 months ago
 21 replies
 11 Medals
Mathematics

hartnn:
Anyone have some practice with VIM/VI editor in unix/Linux ? I want to know if it is possible to get the previous commands on : prompt , the…
 updated 6 months ago
 6 replies
 2 Medals
Mathematics

hartnn:
What does .bashrc file in unix/linux do ?
what steps should i take inorder to run some commands automatically everytime i open my terminal?…
 updated 6 months ago
 7 replies
 2 Medals
Mathematics

hartnn:
@banumati234
Prove that the vertically opposite angles of 2 intersecting lines are equal.
 updated 7 months ago
 16 replies
 3 Medals
Mathematics

hartnn:
This is in continuation with Preetha ma'am question, 'Showcase your good work'
http://openstudy.com/users/preetha#/updates/512b7e1be4b098bb…
 updated 5 months ago
 75 replies
 17 Medals
Mathematics

hartnn:
This happened several times, can we have it fixed ?
 updated one year ago
 13 replies
 3 Medals
Mathematics

hartnn:
Matlab Help :)
GUIDE (Graphic user Interface).
I want to run a .m file when i click on a push button (or maybe using popup menu or whate…
 updated one year ago
 1 reply
 2 Medals
Mathematics

hartnn:
Matlab Help :)
GUIDE (Graphic user Interface).
I want to run a .m file when i click on a push button (or maybe using popup menu or whate…
 updated one year ago
 1 reply
 2 Medals
Mathematics

hartnn:
2,4,8,16,24,36,64,...,...
Find the next 2 numbers in the series and write a function to model it.
 updated one year ago
 26 replies
 5 Medals
Mathematics

hartnn:
Evaluate:
(1 + 1/3^5 + 1/5^5 + 1/7^5 + ...)/(1 + 1/2^5 + 1/3^5 + 1/4^5 + ...)
 updated one year ago
 8 replies
 4 Medals
Mathematics

hartnn:
∫[(x + 1)/(x*(1 + x*e^x)²)]dx
 updated one year ago
 25 replies
 5 Medals
Mathematics

hartnn:
If a line segment is cut into 3 parts, what is the probability that those 3 parts can form a triangle ?
 updated one year ago
 44 replies
 4 Medals
Mathematics

hartnn:
Write a program in C which outputs its own source code.
…
 updated one year ago
 28 replies
 1 Medal
Mathematics

hartnn:
Anyone have some practice in simulating a circuit in PSpice ?
I have started to learn PSpice , but i am not able to simulate a circuit....…
 updated one year ago
 3 replies
 3 Medals
Mathematics

hartnn:
Getting [Math Processing Error]
in Latex for every Latex code , what should be done ?
 updated one year ago
 6 replies
 1 Medal
Mathematics

hartnn:
there are nine points on or inside the unit square.prove that u will always find three points, which consist a triangle with area not greate…
 updated one year ago
 19 replies
 5 Medals
Mathematics

hartnn:
\[ \qquad \qquad \qquad \qquad \qquad \huge{\color{Blue}{T}\color{Yellow}{U}\color{Magenta}{T}\color{Pink}{O}\color{MidnightBlue}{R} I\color…
 updated 10 hours ago
 37 replies
 45 Medals
Mathematics

hartnn:
An nXn matrix A has all diagonal elements=0 and nondiagonal elements =1
Find the eigen values of A.
 updated one year ago
 10 replies
 3 Medals
Mathematics

hartnn:
The two points are uniformly and independently marked inside a square . What is the probability that the center of the square is inside the …
 updated one year ago
 45 replies
 5 Medals
Mathematics

hartnn:
If a,b are integers, what is the probability that \[a^2+b^2 \] is divisible by 10 ?
 updated one year ago
 75 replies
 6 Medals
Mathematics

hartnn:
\[\begin{array}{ccccc}\hline Sr no.&A&B&D&E\\ \hline T&T&T&T&T\\T&F&F&T&F\\F&T&T&F&F\\F&F&T&T&T\\ \hline\end{array}\]
 updated one year ago
 31 replies
 7 Medals
Mathematics

hartnn:
Suggestion:
There should be a way to see all the messages by a particular user together. If i want to view the last message sent by that u…
 updated one year ago
 4 replies
 3 Medals
Mathematics

hartnn:
Syllabus or topics covered in this subject ??
 updated one year ago
 4 replies
 5 Medals
Mathematics

hartnn:
Try this :
How many 5 digit numbers can be formed by using 0,1,2,3,4,5 without repetition, such that the number is divisible by 3.
 updated one year ago
 8 replies
 5 Medals
Mathematics

hartnn:
There are 2 bags, each can hold 50 balls; there are 50 black balls and 50 red balls. A bag is selected at random, and a ball is taken out f…
 updated one year ago
 24 replies
 3 Medals
Mathematics

hartnn:
Aaah! new group for trigonometry :)
Let me start this by asking to expand sin 5x in powers of sin x.
Only for those who have started lea…
 updated one year ago
 13 replies
 7 Medals
Mathematics

hartnn:
Nice to have a separate group for Probability.
Let me inaugurate by asking a Probability Question.
You have 2 dice, one has 1  6 written …
 updated one year ago
 7 replies
 4 Medals
Mathematics
 > Older questions