No13.
Answer:
Cos(x+x)=cosx*cosx-sinx*sinx
=cos2(x)-sin2(x)
=(cosx+sinx)(cosx-sinx)
6+6=12
8+4=12
or if you mean algebraic equation:
6+x=12
x+4=12
True, it keeps getting multiplied by itself more and more
Answer:
this is your answer i hope it is helpful plz marks me branily
Add them all up and divide by 30. Answer: $55.20.