Ha, bu tenglama va LaTeXda isbot: n-chi uchburchak sonini topish uchun tenglama quyidagicha: $$T_n = 1+2+3+\dots+n = \frac{n+1)}{2}$$ Isbot: $$n qatorli piramidaga e'tibor bering, bu yerda $i$th qatorda $i$$ ob'ektlar mavjud. Piramidadagi ob'ektlarning umumiy soni: $$T_n = 1+2+3+\dots+n$$ Biz piramida haqida ikki balandlikdagi piramidalar sifatida ham o'ylashimiz mumkin: $$T_n = 1+2+\dots+n$2$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
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