bantu dong soal TO sbmptn

nemu c
semoga membantu
diket=
rasio=1/^xlog3
s~=1
a=1/^xlog3
misalkan ^xlog3=p
s~=a/(1-r)
1=(1/p)/(1-(1/p))
1-(1/p)=(1/p)
(-2/p)=-1
-2=-p
2=p
2=^xlog3
x^2=3
x=akar3

sin180/3
=sin60
=1/2akar3

maka (x sin60)
=(akar3)(1/2akar3)
=3/2

maaf jika salah