For problems 1 6 use the Product Rule or the Quotient Rule to find the derivative of the given function.
1. [Solution]
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7. If , , and determine the value of . [Solution]
8. If , , determine the value of . [Solution]
9. Find the equation of the tangent line to at . [Solution]
10. Determine where is increasing and decreasing. [Solution]
11. Determine where is increasing and decreasing. [Solution]