December 2019 1 28 Report
1. pda sbuah dret geomtri dtntukan S2=6, S4 = 30. hitunglah S5!

2. √3 , 3+√3 , dan 6+4√3 adlh suku2 yg brurutan dri dret geomtri
a. crilah r
b. tntukn rmus jumlah dri n suku

3. crilah n jika :
a. 2 + 2² + 2³ + ... + 2^n = 510
b. 3 + 3² + 3³ + ... + 3^n = 120

4. stlh mngenai lntai, sbuah bola memantul smpai ktinggian 5m, kmudian smpai ktinggian 2,5m , slnjutnya 1,25m, dn strsnya. Berapakh jrak yg d tmpuh slma 8 pntulan yg prtama?


bntu ya plis


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