matematyka ciągi- 2 podpunkty
1.5
a).
b).
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
1.5![a_n = (-1)^n(n^2 + 1) a_n = (-1)^n(n^2 + 1)](https://tex.z-dn.net/?f=a_n+%3D+%28-1%29%5En%28n%5E2+%2B+1%29)
a).![a_5 = (-1)^5(5^2 + 1)=-1 \cdot 26 = -26 a_5 = (-1)^5(5^2 + 1)=-1 \cdot 26 = -26](https://tex.z-dn.net/?f=a_5+%3D+%28-1%29%5E5%285%5E2+%2B+1%29%3D-1+%5Ccdot+26+%3D+-26)
b).![a_8 = (-1)^8(8^2 + 1) = 1\cdot 65 = 65 a_8 = (-1)^8(8^2 + 1) = 1\cdot 65 = 65](https://tex.z-dn.net/?f=a_8+%3D+%28-1%29%5E8%288%5E2+%2B+1%29+%3D+1%5Ccdot+65+%3D+65)