Out of the four options, only one is correct. Write the correct answer.

If x be any non-zero integer, then x^–1 is equal to

Out of the four options, only one is correct. Write the correct answer.

If x be any non-zero integer and m, n be negative integers, then x^m × xⁿ is equal to

Out of the four options, only one is correct. Write the correct answer.

If y be any non-zero integer, then y⁰ is equal to

Out of the four options, only one is correct. Write the correct answer.

If x be any integer different from zero and m be any positive integer, then x^-m is equal to

Out of the four options, only one is correct. Write the correct answer.

If x be any integer different from zero and m, n be any integers, then (x^m)ⁿ is equal to