0, 1,- 1,

0,- 1,

[Reciprocal number and its square phase] The topic is incomplete.

2.(- 1)2n refers to the 2n power?

(- 1)2n+(- 1)2n- 1 = 1+(- 1)= 0

3.|m+ 1| and (n+2)2 are all numbers greater than or equal to 0. If sum is 0, only both can be 0.

m=- 1，n=-2

m3-n2=- 1-4=-5

I hope I can help you ~!