Discover Questions

Integrate ((4e^x)/(e^(2x) + 2e^x + 3)^2)
Please show steps? What is 1/5+2/5=? If water is heated from -10°C to 50°C at 0.001 atm pressure, what physical changes will occur? What impacts the magnitude of difference in chemical shift between diastereotopic hydrogens? Find an nth-degree polynomial function with real coefficients satisfying the given conditions. n=4; -1,4 and 3+3i are zeros; f(1)=-156?