tashai3138
11.11.2020 •
Mathematics
-3 + { 1 – 3[20 + 2(-6 – 7)]}
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Ответ:
-3(1-3(20-26))
-3(1-3(-6))
-3(1+18)
-3+(19)
16
Ответ:
Its area = (c/2)[4d + 8d]
= 12cd/2
= 6cd