heavyhearttim
26.01.2021 •
Mathematics
The gear train in which diagram provides more torque?
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Ответ:
Step-by-step explanation:
To complete the left side of the equation, we need to bring it to the form
expanding this expression we get:
Thus we have
from here we see that for both sides of the equation to be equal, it must be that
Getting rid of the negative signs we get:
At this point we can either guess the solution to this system (that's how you usually solve these types of problems) or solve for
and 
systematically.
The solutions to this set are
and 
. (you have to guess on this—it's easier)
Therefore, we have
which completes our equation