Question

subject undertaking on a systematic​

Answer 1

Answer:

maths....................

Answer 2

Explanation:

I think it's your answer

subject undertaking on a systematic. basis in order to increase a stock of. knowledge, including knowledge for man.

Research is a detailed study of a subject undertaken on a systematic basis in order to increase the stock of knowledge, including knowledge of man, culture and society, and the use of this stock of knowledge to devise new applications.