Question

如果规定符号''*''的意义是a*b=a加b分之a×b,如;1*2=1加2分之1×2,求2*（﹣3）*4的值

Answer 1

2*（﹣3）*4

=[2×(-3)/(2-3)]*4

=6*4

=6×4/(6+4)

=12/5