Jitender Singh12 Years agoAns:Hi,There is maximum possibility of doing silly errors in the problem of calculusSo 1styou need to clarify each & every concepts related to calculusDo not answer the problem by just looking it, always try to solve the problem by handPractice maximum questions which you can of different variety & difficulty level.Thanks & RegardsJitender SinghIIT DelhiaskIITians Faculty