An airplane left Miami, FL. At the same time another plane left Santiago, Chile. The two planes flew toward each other at rates
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This is your answer say me if I am wrong
Let and
. By the product rule,
By the power rule, we have and
, but
are functions of
, so we also need to apply the chain rule:
and we have
So we end up with
Replace to get everything in terms of
:
We can simplify this by factoring: