1.

Find the following product(i) (-1) x (-1) x (-1) = ……..(ii) (-1) x (-1) x (-1) x (-1) = ……..

Answer»

(i) (-1) x (-1) x (-1) 

= [(-1) x (-1)] x (-1)

= (+1) x (-1)

= -1

(ii) (-1) x (-1) x (-1) x (-1)

= [(-1) x (-1)] x [(-1) x (-1)]

= 1 x 1 

= 1



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