1.what are the basic trigo identity do we(aspiring iitians) require?

2.do we got to learn taylors therem.

3.do we got to learn those series expansion using taylors therem.

Dear aruka

taylors series are not in IIT JEE sylabus

and also you need not to learn the expansion of series with the help of tylors series.

You must see the complete IIT JEE syllabus.you need not to study those topics which are not in the syllabus.otherwise you will waste your important tye.

for trignomentry identity you refer arihant prakashan book

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