Ask
your own question, for FREE!
Mathematics
99 Online
OpenStudy (anonymous):
\[f'(x)=-4sinx-2\sin2x\]\[=-4sinx-4sinxcosx\]\[=-4sinx(1+cosx)\] Please explain to me, why this is so? Especially how you get from the first step to the second step.
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (dumbcow):
sin 2x = 2 sinx cos x this comes from angle sum formula sin(x+x) = sinxcosx + sinxcosx = 2 sinx cosx
OpenStudy (anonymous):
Thanks dumbcow!
OpenStudy (dumbcow):
:)
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
Subshilava:
Evolution is the process of _____ over time. Thereu2019s no options but is it gen
10 minutes ago
0 Replies
0 Medals
AishaRadients:
Do you think social media (Facebook, TikTok, Instagram, etc.) is generally a posi
3 hours ago
2 Replies
1 Medal
Aubree:
Does anyone know how to fix a nintendo switch joycon? I have a pic of what the jo
3 hours ago
22 Replies
0 Medals