67. The value of
( 1) n n is A. 0 C. 1 B. -1 D. 10 E. 0.1

Answer:
A. 0
Step-by-step explanation:
An interpretation of that expression is
[tex] {( - 1)}^{1} + {( - 1)}^{2} + {( - 1)}^{3} + {( - 1)}^{4} + {( - 1)}^{5} + {( - 1)}^{6} + {( - 1)}^{7} + {( - 1)}^{8} + {( - 1)}^{9} + {( - 1)}^{10} [/tex]
This expressions results in
[tex] - 1 + 1 - 1 + 1 - 1 + 1 - 1 + 1 - 1 + 1 = 0[/tex]