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# Computing Derivatives

# Multiplication by -1 Exercises

### Example 1

Find the derivative of the function.

*f*(*x*) = -cos*x*

### Example 2

Find the derivative of the function.

*f*(*x*) = -2*x*^{5}

### Example 3

Find the derivative of the function.

*f*(*x*) = -*e*^{x}

### Example 4

Find the derivative of the function.

*f*(*x*) = -*ln**x*

### Example 5

Find the derivative of the function.