1.

1 × (-1) × 1 x (-1) × …………….. 11 times = ? A) 1 B) – 1 C) 11 D) 0

Answer»

Correct option is  B) – 1

(1 x -1) x (1 x -1) x .... x (1 x -1) (11times)

= -1 x -1 x -1 x ......... x -1 (11 times) 

= (-1)11

= -1



Discussion

No Comment Found