- Help with precalc? reduce this equation cos^2(u)(1-tan^2(u))-2cos^2(u)?

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(4-x)/(x-5) > 1/(1-x)? How would you characterize an independent or individualistic culture? Rank each of the following in order of decreasing standard molar entropy? When the pressure that a gas exerts on a sealed container changes from - torr to 900 torr, the temperature changes from 300 K to 450 K.? A piece of jewelry contains 6.53 x 10^22 atoms of silver. How many moles of silver atoms?