Answers

2016-01-21T12:06:08+05:30
CHAPTER 1 : ARITHMETIC PROGRESSION 
some imp. formulas : tn = a+(n-1)d , where, a= 1st term, d=common dfifference
                                   Sn =n÷2×[2a+(n-1)d]
CHAPTER 2 : QUADRATIC EQUATION
some imp. methods to solve : 1. factorization
                                                 2. completing square method
                                                 3. formula method
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2016-01-21T18:37:59+05:30
Refer to some guide (RS Agarwal ) .Try also to solve ncert book
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