The text book is not a substitute for a teacher. It is complimentary in nature. The students have to work out the problems themselves and finally seek the opinion of the teacher about the correctness of the answer. Design of the book is changed to make it handy. New problems and solutions have been added.
"The text book is not a substitute for a teacher. It is complimentary in nature. The students have to work out the problems themselves and finally seek the opinion of the teacher about the correctness of the answer. Design of the book is changed to make it handy. New problems and solutions have been added."@en
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