# amplitude, period, and phase shift of the function

Show how certain problems can be worked. Please see the attached file.

1) Find the exact value of the sine, cosine, and tangent of the number, without using a calculator. -13Ï€/4

sin (-13Ï€/4) =

cos (-13Ï€/4) =

tan (-13Ï€/4) =

2) Find sin (t), cos (t), tan (t) when the terminal side of an angle of t radians in standard position passes through the given point. (-2,7)

sin (t) =

cos (t) =

tan (t) =

3) State the amplitude, period, and phase shift of the function.

h(t)= -5cos(2t-Ï€/9)

(amplitude)=

(period)=

(phase shift)=

4) If an investment of $2000 grows to $2621.59 in four years with interest compounded annually, what is the interest rate? (Round your answer to one decimal place.)

______%

https://brainmass.com/math/graphs-and-functions/amplitude-period-and-phase-shift-of-the-function-395371

#### Solution Summary

This solution clearly assesses the amplitude, period, and phase shift of the function.