Question

Important chapters of maths for class 12 wbchse

Answer 1

for doing better ,all chapters are importants in class 12th 
             but few chapters which are really scoring :
     1) calculus : it is the most important part of 12th math , basically 30-40 marks covers by calculus. by little efforts , we can gain 30 marks easily .
integration, limit & continuity , differentiability, application of derivatives ,differential equations , graphs  , these are the chapters include in calculus.

2) vector and 3d geometry : very easy and nice chapters in  12th math.
you should learn this not only for math ,also for physics . 
           
3) probability : 1 or 2 questions ask into this chapter .and you can solve very easily , if you have knowledge of permutation & combination.
and sets

  4) inverse trigonometry : 1 question definitely ask into inverse trigonometry. and  every students can solve , with help of basic rule of inverse.
            finally , i want to say that in math, all are importants and inter-related so, you should learn all chapters sincerely. 
  

Answer 2

1.Continuity & Differentiability  

2.Three Dimensional Geometry 

3.Probability (Bayes Theorem) 

4.Linear Programming 

5.Matrices and determinants

6.Application of Derivatives (Word Problem) 

7.Differential equations