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If f(x)=(integral of) (2sinx-sin2x/x^3)dx then limit(x tends to zero) (derivative of f(x) = ? How is a division in a hotel different from a department in the same hotel? Hello can someone help me with this question please !! Consider the peptide, NH2-SCIENCENERD-COOH. What is the charge at a pH of 7? In what respect ceramic composite are superior than metals and polymer? 1.If it is true that 2-dimensional maps distort distance and scale, why do road maps work so well?