Matt is saving to buy a new motorcycle. If he deposits $70 at the end of each month in an account that pays an annual interest
2 answers:
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I suppose you mean
Differentiate one term at a time.
Rewrite the first term as
Then the product rule says
Then with the power and chain rules,
Simplify this a bit by factoring out :
For the second term, recall that
Then by the chain rule,
So we have
and we can simplify this by factoring out to end up with