Recent content by Flammadeao

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    Silly u-substitution mistake happening somewhere

    Oh man, that would make sense... Gah, thankyou :)
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    Silly u-substitution mistake happening somewhere

    Homework Statement \int\frac{sin(2x)}{1+cos(x)^2} Homework Equations None? The Attempt at a Solution I know I can use a trig identity to end up with a numerator of -- 2sin(x)cos(x) So: \int\frac{2sin(x)cos(x)}{1+cos(x)^2} I am using u=1+cos(x)^2 and...
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    How Do You Calculate the Mass Percent of Iron in an Ore Using Redox Titration?

    Is anyone here able to help me or point me in the right direction? Iron ores often involve a mixture of oxides and contain both Fe 2+ and Fe 3+ ions. Such an ore may be analyzed for its iron content by dissolving it in an acidic solution, reducing all of the iron to Fe 2+ ions and then...
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