#ATTENDANCE QUIZ for Lecture 5 of Math251(Dr. Z.)
#EMAIL  RIGHT AFTER YOU WATCHED THE VIDEO
#BUT NO LATER THAN  Sept. 21, 2020, 8:00PM (Rutgers time)
#THIS .txt FILE (EDITED WITH YOUR ANSWERS)
#TO:
#DrZcalc3@gmail.com
#Subject: aq5
#with an ATTACHMENT CALLED:
#aq5FirstLast.txt
#(e.g. aq4DoronZeilberger.txt)



#THE ATTENEDANCE QUESTIONS AND ANSWERS IN LECTURE 5

#LIST ALL THE ATTENDANCE QUESTIONS FOLLOWED BY THEIR ANSWERS

#ATTENDANCE QUESTION 1:

Let a = 7th digit of RUID
Let b = 9th digit of RUID
Find curvature of curve:
r(t) = <t^6, t^6, t^12> at point (2^6, 2^6, 4^6)

#ANSWER:
t = 2

r'(t) = <6*t^5, 6*t^5, 12*t^11>
r''(t) = <30*t^4, 30*t^4, 132*t^10>
r'(2) = <192, 192, 24576>
r''(2) = <480, 480, 125168>
||r'(2) x r''(2)|| = 2724844
||r'(2)|| = 24577
Final answer: Curvature at t = 2 is the number 2724844/24577

#ATTENDANCE QUESTION 2:
Who is your favorite rock band?

#ANSWER:
QUEEN