Dany jest ciąg geometryczny o wyrazie ogólnym . Róznica drugiego i pierwszego wyrazy tego ciągu jest równa?
an = 2*( -3)^n
zatem
a1 = 2*(-3)^1 = 2*(-3) = - 6
a2 = 2*(-3)^2 = 2*9 = 18
a2 - a1 = 18 - ( -6) = 18 + 6 = 24
=================================
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
an = 2*( -3)^n
zatem
a1 = 2*(-3)^1 = 2*(-3) = - 6
a2 = 2*(-3)^2 = 2*9 = 18
a2 - a1 = 18 - ( -6) = 18 + 6 = 24
=================================