- Calc help please: limit of (x+sinx)/x as x approaches 0?

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Find integers x and y such that 57x+79y=17, and 400 What are the applications of poisons equation? What forms when propene reacts with HCN? I'm trying to find a compound that contains an alkaline earth metal and a polytomic ion and then finding its molar mass.? Is it true that the oxidation number of an ion is equal to its protons subtracting its electrons?