Question

solve .....................



.......

Answer 1

you can do this sum by simply putting the value of n=1,2,3

when n=1

=1-6+11-6

=0

when n=2

=8-24+22-6

=8-8

=0

when n=3

=27-54+33-6

=27-27

=0

hope it helps

mark me brainliest