It takes me lot of time to type problems and answers directly. It would be of great help if anyone can suggest me any good latex editor so as to type answer and problems faster.
Thanks in advance!!
Check out this one:
I agree with the other answer and also recommend MathJax. I've built SaturnAPI to support MathJax (along with Octave and a bunch of others). Here is an example: https://saturnapi.com/fullstack/equations-and-matrices