Which of the following is equivalent to `A sub B ?`

Which of the following is equivalent to (a+b/2)^2 ?

Let A and B be two non-empty subsets of set X. If (A-B)U(B-A)=AUB then which of the following is incorrect? a) A sub B b) A sub(X-B) c) A=B( d) B sub A

Let A= {a,b,c}. Which of the following is not an equivalence relation in A?

Which of the following is a sub-unit of myosin?

Which of the following statements are true ? {a} sub {b,c,d,e}

Which of the following statements are true ? phi sub {a,b,c}

Which of the following statements are true ? { a} sub {a,b,c,}

Which of the following is not included in sub- kingdom Cryptogamae?