Why the secondary grades(membership) in the third dimension are equal 1. what it means actually.
Help me guys need to know it urgently

That's a pretty cerebral question for here. Even with my BS Chem, I don't understand it.
Let A be a fuzzy variable with a continuous membership function. Then its entropy is
https://upload.wikimedia.org/math/7/6/9/769806c10ac78ee2a18baef8e11f1e8e.pngWhere
https://upload.wikimedia.org/math/a/4/5/a4521bf459afe7a88b0e9ca575875966.png

Whoa!