AllExperts > Advanced Math 
Search      
Advanced Math
Volunteer
Answers to thousands of questions
 Home · More Advanced Math Questions · Answer Library  · Encyclopedia ·
More Advanced Math Answers
Question Library

Ask a question about Advanced Math
Volunteer
Experts of the Month
Expert Login

Awards

About Us
Tell friends
Link to Us
Disclaimer

 
 
 
 
About Robi Bhattacharjee
Expertise
I can answer a variety of questions on mathematics. Questions on trigonometry, calculus(preferably single variable), algebra, geometry, and number theory will be answered. I cannot answer questions on abstract branches of mathematics such as group theory. I also cannot answer questions on statistics. In number theory, I can answer questions on congruences, prime numbers, units, functions, and the riemann-zeta function.

Experience
I have studied advanced math my entire life. I started calculus in sixth grade. I have attended numerous math competitions and I am attending math organizations such as the San-Diego math circle. Also, this year I have been invited to the USAMO which is a prestigious math competition (Every year the USAMO invites 500 students from across the USA to participate in this competition. The top 6 go to represent the USA in the International Math Olympiad).

Organizations
I am in the San Diego Math Circle

Education/Credentials
I am entering high school and have received a perfect score and the STAR test 5 times in a row. I also have gotten recognitions in the AMC 10, AIME, Math Counts, and ARML. Additionally, I have won the San Diego Math Olimpiad twice in a row.

 
   

You are here:  Experts > Science > Mathematics > Advanced Math > Product of functions

Advanced Math - Product of functions


Expert: Robi Bhattacharjee - 4/1/2009

Question
Hi there.
I am having trouble with this question, I wonder if you can help:
Sketch the graphs of f and g on domain R, where f(x)=x-2 and g(x)=sin(x), Hence sketch the graph of the product function f+g.
I am having difficulty with the 2 units of measurement on the x-axis (i.e pi and real numbers). I know you probably can't assistme with sketching online, but if you could give me a list of instructions to follow.
Thanks so much in advance.
ray

Answer
Hi Ryan,

Basically, use radians for sin(x). So the sin will reach its peak at x = pi/2 rather than 90 degrees. Besides that, graph both of the functions on the same coordinate system. Then, for each x estimate the product of their respective values and plot that above.

I'm afraid this is the most assistance I can give you.


Robi

Add to this Answer   Ask a Question


 
User Agreement | Privacy Policy | Kids' Privacy Policy | Help
Copyright  © 2008 About, Inc. AllExperts, AllExperts.com, and About.com are registered trademarks of About, Inc. All rights reserved.