Question

.


(i) (2-1 - 3-1)-1 + (6-1-8-1)-1 ​

Answer 1

Answer:

answer is 1 .............

Answer 2

Answer:

1

Step-by-step explanation:

given:(2-1-3-1)-1+(6-1-8-1)-1

=(1-3-1)-1+(6-1-8-1)-1

=(1-2)-1+(6-1-8-1)-1

=1-1+(6-1-8-1)-1

=1-1+(6-1-7)-1

=1-1+(6-6)-1

=1-1+0-1

=0+1

=1