🔣یکی از شگفتیهای ریاضی این است که مجموع اعداد فرد متوالی همیشه به یک مربع کامل ختم میشود! این یعنی وقتی اعداد فرد را یکی یکی جمع میکنید، نتیجه همیشه یک مربع خواهد بود.
🟣به عنوان مثال: 1=1² 1+3=4=2² 1+3+5=9=3² 1+3+5+7=16=4² ... فرمول کلی این رابطه 1+3+...+(2n-1)=n²
❗️این الگو یک راز جذاب از دنیای ریاضی است که نشان میدهد چگونه یک جمع ساده میتواند به نتایج شگفت انگیز منتهی شود.
🔣یکی از شگفتیهای ریاضی این است که مجموع اعداد فرد متوالی همیشه به یک مربع کامل ختم میشود! این یعنی وقتی اعداد فرد را یکی یکی جمع میکنید، نتیجه همیشه یک مربع خواهد بود.
🟣به عنوان مثال: 1=1² 1+3=4=2² 1+3+5=9=3² 1+3+5+7=16=4² ... فرمول کلی این رابطه 1+3+...+(2n-1)=n²
❗️این الگو یک راز جذاب از دنیای ریاضی است که نشان میدهد چگونه یک جمع ساده میتواند به نتایج شگفت انگیز منتهی شود.
The S&P 500 fell 1.3% to 4,204.36, and the Dow Jones Industrial Average was down 0.7% to 32,943.33. The Dow posted a fifth straight weekly loss — its longest losing streak since 2019. The Nasdaq Composite tumbled 2.2% to 12,843.81. Though all three indexes opened in the green, stocks took a turn after a new report showed U.S. consumer sentiment deteriorated more than expected in early March as consumers' inflation expectations soared to the highest since 1981. "Someone posing as a Ukrainian citizen just joins the chat and starts spreading misinformation, or gathers data, like the location of shelters," Tsekhanovska said, noting how false messages have urged Ukrainians to turn off their phones at a specific time of night, citing cybersafety. It is unclear who runs the account, although Russia's official Ministry of Foreign Affairs Twitter account promoted the Telegram channel on Saturday and claimed it was operated by "a group of experts & journalists." As such, the SC would like to remind investors to always exercise caution when evaluating investment opportunities, especially those promising unrealistically high returns with little or no risk. Investors should also never deposit money into someone’s personal bank account if instructed. The Security Service of Ukraine said in a tweet that it was able to effectively target Russian convoys near Kyiv because of messages sent to an official Telegram bot account called "STOP Russian War."
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