a das gupta or cengage or vikas gupta sir books ?
i have bought cengage ( algebra ) only and its way too vast obv it is adviced to solve its illustrations but tk sir ki dpp se wo kaam ho jata hai approx 20-25 questions in one dpp therefore i need book which has uk less problems and less repetition so plss guide and i have noticed that cenagage ki back exercise ke questions me bhi bohot repetition hota hai