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вика4670864
@вика4670864
July 2022
1
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1)69-(13-у)²=-у²;
2)31-t²=-(t-9)²
решите уравнения:
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mikunya2014
Простите за недоразумение.Все прикреплено решение (фото)
12 votes
Thanks 16
mikunya2014
69-(13-y)^2=-y^2
mikunya2014
69-(169-26y+y^2)_
mikunya2014
=-y^2
mikunya2014
69-169+26y-y^2+y^2=0
mikunya2014
-100+26y=0
mikunya2014
26y=100
mikunya2014
y=100/26
mikunya2014
y=50/13
mikunya2014
Соре,если чо,я просто
mikunya2014
Не успела прикрепить фото
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