A bend used to clear an obstruction and return to the original line of run is called a(n)
2 answers:
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Step-by-step explanation:
ac is the answer
.............
So in order to get all the fractions to have a common denominator, we need to multiply by
, and
by
:
Now,
As long as and
(which we can't have because otherwise
), we can cancel
in the denominators on both sides:
We can factorize the right side:
which tells us that and
are solutions.