I am going to take 11th commerce. Should I also take maths or informative practices as an optional subje?

Yes, you are eligible for the BCA, as in BCA you only have to develop computer applications that only needs coding. So, it is upon you whether you want to take Maths in class 11th or not.

Kindly take maths. computers/ it can be learnt at any point of life, but life will give you only one option for doing and studying maths in 11th/12th. Also, maths will give you all the options.

Yes, it is your choice because selection of such subjects will make your career scope more wide. For ex. taking IP will open selective career in I.T. Selection of maths can improve your calculation speed which is most essential in commerce specially in accounts. So opting any of these subjects of yo