Homework Help: Trig

Posted by Nada on Saturday, July 24, 2010 at 4:57pm.

a) Determine the equation of a sine function that would have a range of {y€R|-7<(or equal) Y <(or equal) 1} and a period of 135degrees.

b) determine the cosine function that results in the same function an part (a).

Any help provided will be greatly appreciated.

Trig - Reiny, Saturday, July 24, 2010 at 6:34pm
your range is 8, so you need
4cos ??

period = 360/k
360/k = 135
135k = 360
k = 8/3

so far we have
y = 4cos (8/3)Ų

that would give us a max value of 4, but we want our max to be 1, so we have to drop our curve by 3 units

final:
y = 4cos(8/3)Ų - 3
Trig - Nada, Saturday, July 24, 2010 at 9:09pm
Ok I was wondering why the zero with the slash was in the equation, i have never seen that before!

Answer this Question

Related Questions

Algebra - 22. State the domain of the function y=3x+2 a. D: Real numbers b. D: x...
math - Identify the domain and range of the following: f(x) = 4-x^2, -5<x...
math 234 calc 4 !!!!!!!!!!! - write this function in terms of heaviside ...
Objective functon - An objective function and a system of linear inequalities ...
Algebra - Hi. I dont understand how to graph this function. would i make a table...
math (2nd Try) - You have 6 cups of sugar. It takes 1 cup of sugar to make 24 ...
precalculus - Help appreciated~ 1.Use the quadratic formula to determine when f(...
Math - You have 6 cups of sugar. It takes 1 cup of sugar to make 24 cookies. The...
Math/trig - Solve the equation in the given Domain: 1-cos theta/ sin theta = ...
Math - help with these questions~ Thank you 1. Determine the interval(s) on ...

For Further Reading

First Name:
School Subject:
Answer: