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Hello,
It is recommended that you can join a coaching institute as it increases the probability of qualifying the entrance examination. These institutions provide a proper guidance to the student. They also take periodic tests for the student to assess his strong and weak zones and the student can focus more on his weak zones.
Though, it isn't mandatory to join those institutes and there are many students who have qualified even without joining any coaching institute, I firmly believe that joining those institutes is recommended. Without the support of those institutes, it will be tougher for a student to qualify in NEET.
However, as you wish to appear for the NEET entrance examination without coaching, you should solve previous year's entrance examination papers of different entrance examinations. Also, solve as many model test papers as well.
I hope I have been able to answer your queries to your satisfaction.
If so, kindly upvote this answer. If you've any further questions, kindly revert.
Hello,
It is recommended that you can join a coaching institute as it increases the probability of qualifying the entrance examination. These institutions provide a proper guidance to the student. They also take periodic tests for the student to assess his strong and weak zones and the student can focus more on his weak zones.
Though, it isn't mandatory to join those institutes and there are many students who have qualified even without joining any coaching institute, I firmly believe that joining those institutes is recommended. Without the support of those institutes, it will be tougher for a student to qualify in NEET.
However, as you wish to appear for the NEET entrance examination without coaching, you should solve previous year's entrance examination papers of different entrance examinations. Also, solve as many model test papers as well.
I hope I have been able to answer your queries to your satisfaction.
If so, kindly upvote this answer. If you've any further questions, kindly revert.

Hello Ayush,
Facebook and WhatsApp aren't dependent on just one programming language, they involve many. A markup language for designing Front End user interface (probably XHTML/CSS), web programming to validate data (probably PHP), security validation for logins and privacy settings (probably JAVA servlets), a background database to store information (probably SQL/Oracle Database), a pipeline to connect the user interface to the database (probably JDBC/ODBC). Along with these, there could be many more programming languages being used as per the requirement.
Building such an application isn't the job of a single person. It involves a team in which there are members skilled in at least one of the languages being used in the application.
I hope I have been able to answer your queries to your satisfaction.
If so, kindly upvote this answer. If you've any further questions, kindly revert.