Most easy chapters in Maths 11th and 12th???
Hello,
Hope you are doing fine!
Generally easiness of chapter in Mathematics depends upon the priority of a person's interest.
However some chapters like set theory, mathematical induction, A.P, G.P, differentiation, matrix in class 11 and 12 are considered to less complicated compared to other chapters.
You can buy solution books of different publications for better understanding.