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95 Derivative of x+ square root of x squared + 2

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Solve the equation square root 2x-7+x=5

なぜ「xの2分の1乗」が平方根を意味するのでしょうか?

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Evaluate the limit as x approaches -4 of ((square root(x^2+9)-5)/(x+4). Multiply by conjugate

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