Monday, January 23

AnnouncementsWeBWorK #3 is now open

Due Wednesday, January 25 at 9pmCovers material from “Unit 3”—see syllabus web page

Office hours: updating the location updateWednesdays 11:00am–12:30pm, room ILBC 157

I swear I’m not doing this on purpose . . .

Thursdays 1:30–3:00pm, room MATH 212After the quiz

Solutions available online (as of last Friday evening)Quizzes returned online by Friday (I hope)

Instructions online, still to be finalized

Monday, January 23

Clicker Questions

Clicker Question 1

Another formula from geometry

What is the area ofan annulus withouter radius R andinner radius r?

R

r

A. π(R − r)2

B. 12πRr

C. 12π(R + r)

D. π(R2 − r2)

E. none of the above

Clicker Question 2

An easy Product RuleThe derivative of x sin x is x cos x + sin x.

A tricky antiderivative

What is∫

x cos x dx?

A. x sin x − sin x + C

B. x sin x + sin x + C

C. x sin x − cos x + C

D. x sin x + cos x + C has derivative (x cos x + sin x)− sin x

E. none of the above

Monday, January 23

“More than Math” Mondays

Monday, January 23Thrive.ubc.ca

Myths and facts concerning suicide, and warning signsMany links to support services for people with challengesor mental health concerns

Other helpful people (links on course web page)Science students with emotional or medical difficultiesAMS Speakeasy service "provides peer support forstudents facing a wide variety of challenges"Support groups, newly created by AMS SASC

You’re not the only oneWe’re lied to by society: “perfection, or we’re unworthy”We know our own challenges, but don’t see other people’schallenges from the outsideWe’re not alone! Not being perfect is nothing to beashamed about!