Duncan shares 20 percent of all of his sales commissions with his personal assistant. If Duncan earns x dollars in commissions a
1 answer:
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Answer:
a) ,
,
b) ,
,
Step-by-step explanation:
We can use the chain rule in the following form: is u=u(x) is a differentiable function depending on x and y=y(u) is a differentiable function depending on u, then .
a) from the power rule.
.
From the previous parts and the chain rule,
b)
from the power and sum rules.
Then,