Ask
your own question, for FREE!

Mathematics
78 Online

OpenStudy (anonymous):

my question is: cos^2 x = ???

Still Need Help?

Join the QuestionCove community and study together with friends!

OpenStudy (anonymous):

what are you finding?

OpenStudy (anonymous):

I want to find " integral 16 cos^2 x

OpenStudy (anonymous):

oh ok

OpenStudy (anonymous):

Let me see.

OpenStudy (anonymous):

Let me see.

Still Need Help?

Join the QuestionCove community and study together with friends!

OpenStudy (anonymous):

8(x+sin(x)cos(x))

OpenStudy (anonymous):

ahaa.. SURE !!? My teacher will kill me hahaha

OpenStudy (anonymous):

cos2x = 2cos square X -1

OpenStudy (anonymous):

so cos square X = (1+cos2X)/2

OpenStudy (anonymous):

srinu7j ; not cos 2x ... its( cos ^2) x

Still Need Help?

Join the QuestionCove community and study together with friends!

OpenStudy (anonymous):

Let me see.

OpenStudy (anonymous):

yeah

OpenStudy (agreene):

\[\int16cos^2(x)dx\] \[=16 \int cos^2(x) dx\] \[ = 16 \int (1/2 cos(2 x)+1/2) dx\] \[ = 16 \int 1/2 dx + 8 \int cos(2 x) dx\] 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: \[= 8 x+4 sin(2 x)+c\] \[\huge = 8 (x+sin(x) cos(x))+c\]

OpenStudy (anonymous):

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

Jumper:
You are trapped in a room with two doors. One leads to freedom, while the other leads to certain death.

9 seconds ago
39 Replies
2 Medals

Jumper:
What is 90 u00f7 2? First to answer gets a medal ud83dude0f

11 minutes ago
16 Replies
2 Medals

ShoaibChaudhry:
Organisms that reproduce sexually exhibit zygotic, gametic, or sporic meiosis. One way to determine the type of life cycle an organism has is by A.

3 minutes ago
9 Replies
1 Medal

Stringcheese272:
hows my story so far me and @SophiaL are almost done with it https://docs.google.com/document/d/1E3wpLCMlINP7aYPF-zFANfaex7151Bhxe2fB_epNOpQ/edit

10 minutes ago
5 Replies
1 Medal

5StarFab:
Here is a Naruto freestyle rap i did.It does contain other anime/manga's.

9 minutes ago
11 Replies
1 Medal