Are these sentences correct? Is there any semantic diffetrence between them?
我很强。
我是很强的。
Thanks

Question

Answer

The same, 
"我是很强的”sounds not natural, it's grammatically right though. "我很强的”might be better.

Answer

基本意思一样。没有区别。

这句话省去一些内容。应该说：
我（在体育、数学等方面）很强。

Answer

I'ts better to use 我很强 with one-syllable adjectives.

Answer

both are natural, and basically, they have the same meaning. but the latter contains a kind of tone of explanation.