A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing
 2 years ago
please help!!!! i need to know the horizontal tangents of sin(25x) and the vertical tangents of cos(25x). I got answers of 0 and pi/25 and 25pi/2 and 75pi/2, but my online hw says that theyre wrong
 2 years ago
please help!!!! i need to know the horizontal tangents of sin(25x) and the vertical tangents of cos(25x). I got answers of 0 and pi/25 and 25pi/2 and 75pi/2, but my online hw says that theyre wrong

This Question is Closed

richyw
 2 years ago
Best ResponseYou've already chosen the best response.0\(f(x)=\cos(25x)\) has no vertical tangent lines, are you in cartesian coordinates?

richyw
 2 years ago
Best ResponseYou've already chosen the best response.0for the first one you can just take the derivative and set it equal to zero. so \[\frac{d}{dx}(\sin25x)=\cos (25x)\cdot\frac{d}{dx}25x=25\cos (25x)\]

collegegirl89
 2 years ago
Best ResponseYou've already chosen the best response.0yeah the interval is from 0 to 2pi

collegegirl89
 2 years ago
Best ResponseYou've already chosen the best response.0i thought that cos(25x), when set equal to 0 yielded pi/50 and 3pi/50
Ask your own question
Ask a QuestionFind 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.