Ask
your own question, for FREE!
Mathematics
46 Online
OpenStudy (anna):
4sin2theta=0 what is the value of theta?
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (anonymous):
From trig identities, sin(2theta) = 2sin(theta)cos(theta), so 4sin(2theta) = 8sin(theta)cos(theta), which is zero at 0, pi/2, pi, and -pi/2. If the domain is restricted to 0\[\le\]theta\[\le\]pi, then it is just 0 and pi.
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
xXAikoXx:
What needs to be done before choosing and reading a book? A. Make sure it is nonfiction.
gelphielvr:
(chemistry 2 questions) 1. Differentiate between the plum pudding model and the nuclear model for the atom.
gelphielvr:
(logistics) If the king does not castle and the Pawn advances then either the Bishop is blocked or the Rock is pinned.
Tylerr:
Does anyone know of any reputable websites offering scholarships, or where one ca
vannieduval:
Yall need to make a section for boredom and random thoughts
Jayisbetterfrfr:
Sometimes I beat up myself, I block my own way I cloud all my thoughts, please go
Luna34:
Mending Glass A heart once whole, now cracked and worn, Its edges sharp, its fabric torn, A silent cry, a whispered ache, From love once real, now past the
Luigi0210:
Bromine has 2 isotopes Br-79 and Br-81. The smaller isotope is 51% of the atoms on earth.
xXAikoXx:
What needs to be done before choosing and reading a book? A. Make sure it is nonfiction.
4 hours ago
2 Replies
1 Medal
gelphielvr:
(chemistry 2 questions) 1. Differentiate between the plum pudding model and the nuclear model for the atom.
6 hours ago
4 Replies
2 Medals
gelphielvr:
(logistics) If the king does not castle and the Pawn advances then either the Bishop is blocked or the Rock is pinned.
7 hours ago
17 Replies
2 Medals
Tylerr:
Does anyone know of any reputable websites offering scholarships, or where one ca
8 hours ago
9 Replies
2 Medals
vannieduval:
Yall need to make a section for boredom and random thoughts
8 hours ago
9 Replies
0 Medals
Jayisbetterfrfr:
Sometimes I beat up myself, I block my own way I cloud all my thoughts, please go
3 hours ago
5 Replies
2 Medals
Luna34:
Mending Glass A heart once whole, now cracked and worn, Its edges sharp, its fabric torn, A silent cry, a whispered ache, From love once real, now past the
2 hours ago
4 Replies
3 Medals
Luigi0210:
Bromine has 2 isotopes Br-79 and Br-81. The smaller isotope is 51% of the atoms on earth.
1 day ago
9 Replies
4 Medals