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[tex]Determinati~termenul~general~al~unei~progresii~aritmetice~(a _{n} )_{n \geq 1} ~ \\ stiind ~ca~: \\ a_{3}^{2} -a_{1} ^{2} =24 \\ a_{1} ^{2} +a_{2} ^{2} =10[/tex]