Ask
your own question, for FREE!
Mathematics
13 Online
OpenStudy (anonymous):
Use basic identities and algebra to simplify the expression. Assume all denominators are nonzero. (sin t - cost t)^2
Still Need Help?
Join the QuestionCove community and study together with friends!
myininaya (myininaya):
(sint-cost)(sint-cost)=(sint)^2-2sintcost+(cost)^2
myininaya (myininaya):
but (sint)^2+(cost)^2=1
myininaya (myininaya):
1-2sintcost
myininaya (myininaya):
=1-sin(2x)
OpenStudy (anonymous):
how did you get the last step?
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
Countless7Echos:
Ah trying out the whole T.V girl drawing :p (I love drawing eyes)
SnowyBreaks:
You ever get the types of dreams where it feels as if you aren't breathing? And w
laylasnii13:
Poem/diary i wrote I Want Out Iu2019m so tired of screaming into walls. Every fight with my mom leaves something broken and itu2019s not just plates or slam
Countless7Echos:
Aye.. I need actually some help on the shading here.. if the light is from above too I just feel something is off.
Countless7Echos:
Ah trying out the whole T.V girl drawing :p (I love drawing eyes)
2 hours ago
7 Replies
5 Medals
SnowyBreaks:
You ever get the types of dreams where it feels as if you aren't breathing? And w
14 hours ago
6 Replies
0 Medals
laylasnii13:
Poem/diary i wrote I Want Out Iu2019m so tired of screaming into walls. Every fight with my mom leaves something broken and itu2019s not just plates or slam
1 day ago
13 Replies
3 Medals
Countless7Echos:
Aye.. I need actually some help on the shading here.. if the light is from above too I just feel something is off.
3 days ago
19 Replies
3 Medals