Math 141
Name:
________________________
QUIZ 1A
(CHAPTER 0)
MATH 141 – SPRING 2011 – KUNIYUKI
90 POINTS TOTAL
No notes or books allowed. A scientific calculator is allowed.
Check one:
Can you easily print files from the class web site?
Yes. I do
not
need copies of exam solutions made for me.
No. Please provide me with copies of exam solutions.
You may assume that two-dimensional graphs are in the usual Cartesian
xy
-plane.
Give exact answers, unless you are told to approximate.
SHORTER PROBLEMS
(30 POINTS TOTAL:
2 POINTS EACH, UNLESS OTHERWISE SPECIFIED)
1)
The symbol
±
means which of the following? (Box in one.)
For all
There exists
Is a member of
2)
(6 points total).
a)
Write the
converse
of this statement:
“If John is good, then I buy John the Harry Potter book.”
b)
Write the
contrapositive
of this statement:
“If John is good, then I buy John the Harry Potter book.”
c)
Which of the following is logically equivalent to the given statement?
(Box in one.)
Its converse
Its inverse
Its contrapositive

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