Question

x#y=xy/1+(x+1)(y+a)/1 且2#1=12/7 求3#1值

Answer 1

x=2,y=1

2#1=1/2+1/(2+1)(1+a)=7/12

1/3(1+a)=1/12

1+a=4

a=3

3#1=1/3+1/(3+1)(1+3)

=1/3+1/16

=19/48