Define a new operation with "[": for any rational number a, B has a [b = B ^ 2 + 1, for example, 7 [4-4 2+1=17. 1. Fill in the blanks: 5 [=_____ ； 2. When m is a rational number, find the value of M [, (2) Given that m and N are opposite numbers, X and y are reciprocal numbers, | a | = 1, try to find the value of a ^ 2 - (M + n) ^ 2012 + (- XY) ^ 2012 Define a new operation with "[": for any rational number a, B has a [b = B ^ 2 + 1, for example, 7 [4-4 ^ 2 + 1 = 17

Define a new operation with "[": for any rational number a, B has a [b = B ^ 2 + 1, for example, 7 [4-4 2+1=17. 1. Fill in the blanks: 5 [=_____ ； 2. When m is a rational number, find the value of M [, (2) Given that m and N are opposite numbers, X and y are reciprocal numbers, | a | = 1, try to find the value of a ^ 2 - (M + n) ^ 2012 + (- XY) ^ 2012 Define a new operation with "[": for any rational number a, B has a [b = B ^ 2 + 1, for example, 7 [4-4 ^ 2 + 1 = 17

1. Fill in the blanks: 5 [=_ 10____ ；
2. When m is a rational number, find the value of M [,
m☆(m☆2)
=m☆(2²+1)
=m☆5
=5²+1
=26
(2) Given that m and N are opposite numbers, X and y are reciprocal numbers, | a | = 1, try to find the value of a ^ 2 - (M + n) ^ 2012 + (- XY) ^ 2012
m. N is opposite to each other
m+n=0
x. Y is reciprocal to each other
xy=1
,|a|=1
a²=1
a^2-(m+n)^2012+(-xy)^2012
=1-0+1
=2