Question

(- 1) x (- 1) x (- 1) × …………….. (2m + 1) times, where m is a natural number, is

equal to

(a) 1

(b) – 1

(c) 1 or – 1

(d) none of these​

Answer 1

I think it is-1

I hope it is helpful

Answer 2

Answer:

(b) -1

Step-by-step explanation:

This multiplication goes on upto (2m+1) terms, m€N. The term (2m+1) is clearly an odd number because 2m is always even and when added to 1, it changes to odd.

Also, the multiplication of the number (-1), if carried out odd times, gives an aggregate resultant equal to -1.

Thus, the answer is -1.