Will my skills improve when I make them Legendary? [duplicate]

Will my skills become stronger when I make them Legendary?

No, your skill won't become stronger if you make them legendary. In fact, it will be even weaker, because its level will be reseted, and its efficiency is based on its level.

Moreover, all the skill points you spent on that one will be removed from its tree, but they will be available for spending on somewhere else.

In simple, your skill will be the same as the beginning of the game.

The main interests to make legendary a skill are:

• to be able to exceed the old level cap of 81...
• ...and so to gain more skill points to spend.