If a is a positive even integer, and n and m are consecutive integers, then (n - m)^a/(m - n)^a = Choose the most appropriate option.
A) -2	B) -1	C) 0	D) 1	E) 2
a= +ve even integer   Since,n and m are consecutive integers , their difference will be 1   ((n-m)^a)/((m-n)^a)= ((n-m)/(m-n))^a = (-1)^a   Since we are raising the difference of n and m to power a , which is even , the answer will be 1 .   Answer 1
<result>D</result>
If a is a positive even integer, and n and m are consecutive integers, then (n - m)^a/(m - n)^a =