Answer:
true
Explanation:
The operator '!' used in the question is called NOT operator which invert the value of Boolean.
if the value is TRUE, output will be FALSE.
if the value is FALSE, output will be TRUE.
The operator '==' is used for comparison, if both values are equal then it gives TRUE otherwise FALSE.
The value of x is -1.
so, (-1 == 0) which is FALSE. -1 and zero are not equal.
then, !(FALSE) which gives TRUE output.
Therefore, the answer is true.