Let `A = { 1, 2, { 3, 4 }, 5 }`. Which of the following statements are incorrect and why?
`{3, 4} ∈ A`

Let A = { 1, 2, { 3, 4 }, 5 } . Which of the following statements are incorrect and why? 1 ∈ A

Let A = { 1, 2, { 3, 4 }, 5 } . Which of the following statements are incorrect and why? 1 ⊂ A

Let A = { 1, 2, { 3, 4 }, 5 } . Which of the following statements are incorrect and why? φ ∈ A

Let A = { 1, 2, { 3, 4 }, 5 } . Which of the following statements are incorrect and why? φ ⊂ A

Let A = { 1, 2, { 3, 4 }, 5 } . Which of the following statements are incorrect and why? {1, 2, 5} ∈ A

Let A = { 1, 2, { 3, 4 }, 5 } . Which of the following statements are incorrect and why? {φ} ⊂ A

Let A = { 1, 2, { 3, 4 }, 5 } . Which of the following statements are incorrect and why? {1, 2, 3} ⊂ A

Let A = { 1, 2, { 3, 4 }, 5 } . Which of the following statements are incorrect and why? {1, 2, 5} ⊂ A

Let A ={1,2,{3,4},5} . Which of the following statements are incorrect and why ? (i) {3,4} subA (ii) {3,4} in A (iii) {{3,4}}sub A (iv) 1 in A (v) 1 sub A (vi) {1,2,5} sub A (vii) {1,2,5} in A (viii) {1,2,3} sub A (ix) phi in A (x) phi sub A (xi) {phi} sub A .