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montimcdaniel
23.03.2021 •
Mathematics
7. Which of the following is the geometric explicit formula?
1). a .= a,+d(n-1)
2). a .=(r)"
3). y = ax'+bx+c
4). a = d+r(n-1)
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Ответ:
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Step-by-step explanation:
If F is the mid-point of GI, GF is equal to FI (definition of midpoint)
angle EFI is equal to angle HFG (vertical angles property)
triangle EFI is equal to HFG (SAS/side angle side property)