Wednesday, February 3
Announcements
If you submitted your Quiz #1 for a regrade, come pick it up
from me (before or after class)
WeBWorK #4 due today at 9pm
Solutions to (all versions of) Quiz #2 are online
Quiz #2 papers will be available in the MLC starting
Thursday
Grades posted in Connect by Friday
Wednesday, February 3
Clicker Questions
Clicker Question 1
That other identity
Suppose θ is an angle such that tan θ = 5x . What is sin θ?
A.
5
x
√
x2 + 25
√ 5
x2 + 25
C.
x
5
D. √
x2 + 25
x
E. √
2
x + 25
Draw a little triangle
B.
x2 + 52
θ
5
sin θ = opposite/hypotenuse
cos θ = adjacent/hypotenuse
tan θ = opposite/adjacent
x