Question

a2+b2+c2-2a+4b-6c+14=0,求（a+c）的b次方 好了再加分,马上就要

Answer 1

(a-1)^2+(b+2)^2+(c-3)^2=0; a=1,c=3,&b=-2 ;（a+c）^b=4^(-2)=1/16