Video on how to find Derivative of 3/x + 2/(x ^ 2) + 1/(x ^ 3)

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Derivative of 1 + 2x + 3x ^ 2

Derivative of x ^ 4 - 3x ^ 2 - 7x + 4sqrt(x) - 5

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Derivative of x ^ 4 - 3x ^ 2 - 7x + 4sqrt(x) - 5