Ask
your own question, for FREE!
Mathematics
11 Online
my question is: cos^2 x = ???
Still Need Help?
Join the QuestionCove community and study together with friends!
what are you finding?
I want to find " integral 16 cos^2 x
oh ok
Let me see.
Let me see.
Still Need Help?
Join the QuestionCove community and study together with friends!
8(x+sin(x)cos(x))
ahaa.. SURE !!? My teacher will kill me hahaha
cos2x = 2cos square X -1
so cos square X = (1+cos2X)/2
srinu7j ; not cos 2x ... its( cos ^2) x
Still Need Help?
Join the QuestionCove community and study together with friends!
Let me see.
yeah
\[\int16cos^2(x)dx\] \[=16 \int cos^2(x) dx\] \[ = 16 \int (1/2 cos(2 x)+1/2) dx\] \[ = 16 \int 1/2 dx + 8 \int cos(2 x) dx\] For the integrand cos(2 x), substitute u = 2 x and du = 2 dx: \[ = 4 \int cos(u) du+16 \int 1/2 dx\] \[= 4 \int cos(u) du+8 x\] \[ = 4 sin(u)+8 x+c\] Substitute back for u = 2 x: \[= 8 x+4 sin(2 x)+c\] \[\huge = 8 (x+sin(x) cos(x))+c\]
I will repate my Q: INTEGRAL 16 cos^2|dw:1319605597473:dw| x
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.
32 minutes ago
8 Replies
5 Medals
15 hours ago
6 Replies
0 Medals
1 day ago
13 Replies
3 Medals
3 days ago
19 Replies
3 Medals