Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
collegegirl89
Group Title
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
 one year ago
 one year ago
collegegirl89 Group Title
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
 one year ago
 one year ago

This Question is Closed

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

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

collegegirl89 Group TitleBest ResponseYou've already chosen the best response.0
yeah the interval is from 0 to 2pi
 one year ago

collegegirl89 Group TitleBest ResponseYou've already chosen the best response.0
ahh im confused
 one year ago

collegegirl89 Group TitleBest ResponseYou've already chosen the best response.0
i thought that cos(25x), when set equal to 0 yielded pi/50 and 3pi/50
 one year ago
See more questions >>>
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.