Do you understand the necessity of this project?

That information is unnecessary.

That information is completely unnecessary.

He thinks that war is a necessary evil.

He and his twin brother are as alike as two peas in a pod.

He and his brother are as alike as two peas in a pod.

He has the alias 'Genius' because of his talent.

He cut the apple into exactly two equal parts.

His heart was broken in two.

In order to find the inverse function, you need to solve the original function's equation for x and y.