Is 優しい the opposite of 難しい


From a book:

[![img1](https://i.stack.imgur.com/hLIpDm.jpg)](https://i.stack.imgur.com/hLIpDm.jpg)

As far as I'm concerned, やさしい can mean either easy or gentle. However, the
kanji used for each is different: 易しい and 優しい, respectively. That is, you
wouldn't use 優しい in あの問題は優しい, right?




This is almost certainly an erratum.

The _Kojien_ dictionary explicitly mentions that the meaning of 'easy' is
written as 易しい:

`(「易しい」と書く) 簡単である。容易である。`  
`今昔物語集10「―・しく手を斬らるるがつたなきなり」「―・い仕事」`  
`わかりやすい。「―・い本」`

[Wikipedia](https://ja.wikipedia.org/wiki/%E9%9B%A3%E5%BA%A6) agrees, for
whatever that is worth. What book is this from?




This is almost certainly an erratum.

The _Kojien_ dictionary explicitly mentions that the meaning of 'easy' is
written as 易しい:

`(「易しい」と書く) 簡単である。容易である。`  
`今昔物語集10「―・しく手を斬らるるがつたなきなり」「―・い仕事」`  
`わかりやすい。「―・い本」`

[Wikipedia](https://ja.wikipedia.org/wiki/%E9%9B%A3%E5%BA%A6) agrees, for
whatever that is worth. What book is this from?

