A community for students.
Here's the question you clicked on:
← 55 members online
 0 viewing

This Question is Closed

shahzadjalbani
 2 years ago
Best ResponseYou've already chosen the best response.0@sakh @ParthKohli @ParthKohli

Rogue
 2 years ago
Best ResponseYou've already chosen the best response.0I don't know what the abinitio method is, but you can differentiate this by using the chain rule.\[\frac {d}{dx} \left[ \cos^2 x \right] = 2 \cos x * \frac {d}{dx} \left[ \cos x \right] = 2 \cos x \sin x = \sin 2x\]
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.