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## Derivatives of cos(x), sin(x), 𝑒ˣ, and ln(x)

# Proving the derivatives of sin(x) and cos(x)

Proving that the derivative of sin(x) is cos(x) and that the derivative of cos(x) is -sin(x).

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Proving that the derivative of sin(x) is cos(x) and that the derivative of cos(x) is -sin(x).