pkot3409
06.11.2020 •
Mathematics
Select the correct answern-9 2/7 -(-10 3/7)
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Ответ:
n=8/7
Step-by-step explanation:
Ответ:
side 1: t - 1
side 2: t + 1
side 3: 4
side 1 + side 2 > side 3 & side 2 + side 3 > side 1 & side 3 + side 1 > side 2
(t - 1) + (t + 1) > 4 (t + 1) + (4) > (t - 1) (4) + (t - 1) > (t + 1)
2t > 4 t + 5 > t - 1 t + 3 > t + 1
t > 2 5 > -1 (TRUE) 3 > 1 (TRUE)
t > 2