EC2/Midterm

Unit Circle

100

cos(pi/3)

What is 1/2

200

sin(240^o)

What is - sqrt of 3 over 2

300

tan(7pi/4)

What is -1

400

csc(pi)

What is Undefined

500

cot(2pi/3)

What is -sqrt(3)/3

Graph Transformations

100

What parameter tells you the midline

What is k?

200

Formula for period

What is 2pi/omega

300

What parameter is Added/Subtracted from x

What is h(horizontal shift)?

400

Standard form for cos(x)

What is f(x)=Acos(omega(x-h))+k

500

sin function: left 2, up 4, period pi/2

What is f(x)=sin(4(x+2))+4

Exponential Functions

100

The inverse of exponential 

What is log

200

Convert exponential to log function

b²=49

What is log_b(49)=2

300

Find the inverse of a graph

What is draw line y=x and reflect over the line or pick points and switch x and y

400

What parameters work the same for all functions?

What is a, h, and k?

500

The transformations that happened here are

f(x)=4^x+5-7

What is left 5 and down 7

Trig Identities

100

Cos is which variable, x or y?

What is x

200

Tangent formula

What is y/x or Sin/cos

300

What type of trig identity is this sin²x + cos²x=1

What is Pythagorean identity

400

What expression is equivalent to sin(a)cos(b)+cos(a)sin(b)

What is sin(a+b)

500

What expression is equivalent to 2cos²x - 1

What is cos2x