Write the converse and decide whether the converse is true or false.
(iii) If `x^2=1`, then x=1.

Write the converse and decide whether the converse is true or false. (ii) If an integer is odd, then its square is an odd integer.

Write the converse and decide whether the converse is true or false. (vi) If x and y are two odd numbers, then x+y is an even number.

Write the converse and decide whether the converse is true or false. (vii) If vertices of a parallelogram lie on a circle then it is a rectangle.

Write the converse and decide whether the converse is true or false. (i) If triangle ABC is isosceles, then its base angles are equal.

Write the converse and decide whether the converse is true or false. (iv) If ABCD is a parallelogram , then AC and BD bisect each other.

Energy can be created and be destroyed. State whether this is true or false.

Write the conversion of ethylene glycol to 1,4-dioxane ?

In each of the following, determine whether the statement is true or false. If it is true, prove it. If it is false, give an example. If x ∈ A and A ∈ B , then x ∈ B

In each of the following, determine whether the statement is true or false. If it is true, prove it. If it is false, give an example. If x ∈ A and A ⊄ B , then x ∈ B

In each of the following, determine whether the statement is true or false. If it is true, prove it. If it is false, give an example. If A ⊂ B and x ∉ B , then x ∉ A