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jholland03
25.07.2019 •
History
The importances of gorbachev new thinking for soviet control of eastern europe
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Ответ:
Ответ:
answer: this problem has only trivial solutions, with all points on the same line. x=5 or x=7/5.
step-by-step explanation:
there are three triangles, and three unknowns: x, y=length of middle segment, and z=cos(angles marked with red arc).
we need
and law of cosines,
the three equations are
see attached image for solution.