- Math problem please help?

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What is the kinetic energy of the Earth relative to space? I found a baby squirrel with a nose bleed and is not able to open its eyes.As there are no animal doctor in our town , what should I do? A factory makes 250 tables a day. What is an equation that can be used to find the total number of tables made, y, after x days? Is dark energy the reuslt of the Aether substance wouldn't Aether mass times C^2 equals Energy? Tan2x=2tanx/1+tan^2x... my math teacher gave me this but I thought the double-angle identity was with a denominator 1-tan^2x?