Question

[1-{1-(1-x2)-1)-1)-1/2 is equal to
(a) x
(b) 1/x
Х
(c) 1
(d) none of these​

Answer 1

Answer:

(1-(1-(1-*2)-1)-1)-1/2

(1-(1-(2-)-1)-1)-1/2

(1-(1-(2+1)-1)-1/2

(1-(1-3-1)-1/2

(1-(1-4)-1/2

(1-(-3)-1/2

(1-3)-1/2

-2-1/2

2*-2-1*1/2

-4-1/2

-5/2

d) none of these