Question

-1
- 1
Х
X
2.
3
4
45
21
391
Х
20
17
492​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

0

Step-by-step explanation:

Consider only the numerator

Here we get

\frac{1}{2})^{-1}  x \frac{1}{2} -1

=>  2 x \frac{1}{2} -1

=>  1 - 1 = 0

Thus since numerator is 0 the answer will be 0