You asked about the question, right but the answer will not be appropriate for all.

• We know that the dental formula of an adult is #color(red)("I"-2;" C"-1" PM"-2;" M"-3#

• For a child, it is #color(red)("I"-2;" C"-1" PM"-0;" M"-2#

• I will say that a #16#-year-old boy will have a dental formula like the one of an adult.

#int log(x) dx=int ln(x)/ln(10) dx#
#=1/ln(10)int ln(x) dx#
Verwendung der Integration in Teilstücken :
#int f(x)g'(x) dx=[f(x)g(x)]-int f'(x)g(x) dx#
Dort : #f(x)=ln(x), f'(x) =1/x,g(x)=x,g'(x)=1#
Damit: #int log(x) dx=1/ln(10)(xln(x)-int dx)#
Damit:#int log(x) dx=1/ln(10)(xln(x)-x)+C=x/ln(10)(ln(x)-1)+C#

Im Allgemeinen #int log_"n"(x) dx=x/ln(n) (ln(x)-1)+C#

#n in RR""_+^*# #{1}#, #C in RR#