A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 2 years ago
for the function f(x) = sin x, show with the aid of the elementary formula sin^2 A = (1/2)(1  cos2A) that f(x + y)  f(x) = cos x sin y  2sin x sin^2(1/2 y)
anonymous
 2 years ago
for the function f(x) = sin x, show with the aid of the elementary formula sin^2 A = (1/2)(1  cos2A) that f(x + y)  f(x) = cos x sin y  2sin x sin^2(1/2 y)

This Question is Closed

AravindG
 2 years ago
Best ResponseYou've already chosen the best response.0f(x) = sin x f(x+y)=............

anonymous
 2 years ago
Best ResponseYou've already chosen the best response.0uhm.... I don't get it

anonymous
 2 years ago
Best ResponseYou've already chosen the best response.0dw:1371559111312:dw

anonymous
 2 years ago
Best ResponseYou've already chosen the best response.0dw:1371559308561:dw

anonymous
 2 years ago
Best ResponseYou've already chosen the best response.0uhm, how did f(x+y) = sin(x+y) happen?

anonymous
 2 years ago
Best ResponseYou've already chosen the best response.0f(x)=sinx, f(x+y)=sin(x+y) replace x+y in place of x.

anonymous
 2 years ago
Best ResponseYou've already chosen the best response.0so f(x) = sin x f(x+y) = sin (x + y) therefore: f(x+y)  f(x) = sin (x+y)  sin x how did sin (x+y)  sin x turned into 2cos (x + [y/2]) sin(y/2)?

anonymous
 2 years ago
Best ResponseYou've already chosen the best response.0you should know the transformations. like dw:1371560643711:dw

anonymous
 2 years ago
Best ResponseYou've already chosen the best response.0there are two more in terms of cosine. dw:1371560779150:dw
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.