Question

pliss jawab kak atau adek
beserta caranya ya

terima kasih

Answer 1

Un=n+5/7n-1

U1=1+5/7×1-1
=6/7-1
=6/6=1

U2=2+5/7×2-1
=7/14-1
=7/13

U3=3+5/7×3-1
=8/21-1
=8/20=2/5

Jawabannya A. 1, 7/13, 2/5