Page 2 - WORKSHEET
P. 2
6. Write each of the following statement in the form “if-then”.
(i) A quadrilateral is a parallelogram if its diagonals bisect each other.
+
(ii) To get A in the class, it is necessary that you do the exercises of the book.
7. Show that the following statement is true by the method of contra positive.
2
p: If x is an integer and x is even, then x is also even.
3
8. Show that the statement p: “If x is a real number such that x + 4x = 0, then x is 0” is true
by
(i) direct method (ii) method of contradiction (iii) method of contra positive
