Lim X - > 0 + X / (1-cosx) ^ 1 / 2 why is the answer 2

Lim X - > 0 + X / (1-cosx) ^ 1 / 2 why is the answer 2

When x tends to zero,
1-cosx is equivalent to 0.5x ^ 2
therefore
(1-cosx) ^ 1 / 2 is equivalent to X / √ 2
So the limit value is
x/(x/√2)=√2
The answer is 2. That's definitely not right