Sine, Cos, Tan

What is the correct equation?

• sin 40 = w/28

• cos 40 = w/28

• tan 40 = w/28

• sin 40 = 28/w

Which Trig function do you use?

• Sine

• Cosine

• Tangent

Find x. 

• 46.1

• 4.90

• 16.4

• 26.9

Find the value of cos C.

• 29/20

• 21/20

• 20/29

• 20/21

The 4 key features that we'll use for sine/cosine graphs are

M: ​ (a)   ​

A: ​ (b)  

P: ​ (c)  

PS:​ (d)  

• midline

• amplitude

• period

• phase shift

What are the Amplitude, Period and Midline of this sin graph?

y=Asin(B(x-C))+D is the standard form. A is the Amplitude B helps you find the period, B=2pi/period C is the phase shift D is the midline (vertical shift) For y=7sin(6(x-8))+9,

• 9

• D, midline

• 8

• B, helps calculate period

• 7

• C, phase shift

• 6

• A, amplitude

What are the Amplitude, Period and Midline of this sin graph?

For y=7sin(6(x-8))+9, What is the value of A, B , C, and D?

• 6

• C, phase shift

• 9

• A, amplitude

• 7

• D, midline

• 8

• B, helps calculate period

F(x) = Asin[B(x-C)] + D is the standard form. A is the Amplitude B helps you find the period, B=2pi/period C is the phase shift D is the vertical shift Then f(x) = 2Sin(3x + 1) + 4

• 2

• A, amplitude

• 1

• D, vertical shift

• 3

• C, phase shift

• 4

• B, helps calculate period