log((sin(5))^2)-3+pi等于多少?
1个回答

a=sin(5)=-0.95892427466313846889315440615599

b=a^2=0.91953576453822622612943197391203

c=lg(b)=-0.036431374593889429633032367759877

d=c-3=-3.0364313745938894296330323677599

e=d+pi=0.10516127899590380882961101551963