oblicz wyraz krychadd: oblicz wyraz a , jesli a1=−3 ; r=0,3 ; n=21 n

Damian: POMAGAM

Damian: a_n = a₁ + (n−1)r a_n = −3 + (n−1) 0.3 skoro n = 21 to co za problem podstawic do wzoru a₂₁= −3 + (21−1) 0.3 = −3 + 20* 0.3 = −3 +6 = 3