Math 241 Quiz 2 Time: 10 minutes
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Math 241 Quiz 2
Time: 10 minutes
1. Show your work. Answers have to be justified.
2. If the computations are too complicated to handle, proceed as far as you can, and leave the answer
in such a form that someone with a calculator can get the numerical result. 85
− 23cos9 is OK;
− 2k(k − 1) is not OK, since there are some a’s, b’s and k’s.
3. Books, notes, or calculators cannot be used. Only pens, pencils, and erasers are allowed.
1. Given the points P(1, 2), Q(3, 0), and R(4, 4), what is the area of the triangle P QR?