Ask
your own question, for FREE!
Mathematics
20 Online
OpenStudy (anonymous):
The amplitude and period of y = cos3xcos7x + sin3xsin7x are ?
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (callisto):
y = cos3xcos7x + sin3xsin7x = cos (3x-7x) = cos (-4x) = cos4x For amplitude, I think it should be the same as the ordinary case?! For period, i think it would be reduced by 1/4, that is pi/2 ?! I'm not sure...
OpenStudy (anonymous):
Amp = 1 and Period = pi/2 so you got the period correct but i dont get the Amp though ?
OpenStudy (callisto):
there is no change in amplitude as there is no enlargement along y-axis.. If you see it is like y = kf(x) there is some change in the amplitude. But for this case, it's not
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
thereneelg:
Okay....I'm doing a group solo for choir. Auditions are Tuesday (?), Any tips on
Arizona:
my Rolling stone airpods won't connect and I got them about a year ago is there t
Arizona:
can someone check out my essay i'm doing in my senior English class about the McD
IcedShots:
I was wondering, is there anybody on here around my age? Im turning 15 on December 1 ud83dude0a.
thatonenerd:
Use Hvap of water = 40.7 kJ/mol, c of water = 4.184 J/g.u00b0C, and molar mass of HO = 18.
letrasbonitasz:
Typography plays an important role in digital communication. Different font styles can make social media profiles, usernames, messages, and creative designs
Bounty:
tested love: im so over love it acquires patience i don't have trials an tribulations yet my souls the only one taken i give 90 you give 10 you say that you
SaltySuga:
is it possible to tell how deep a cut is by an open wound? like would i be able t
thereneelg:
Okay....I'm doing a group solo for choir. Auditions are Tuesday (?), Any tips on
1 day ago
0 Replies
0 Medals
Arizona:
my Rolling stone airpods won't connect and I got them about a year ago is there t
1 day ago
3 Replies
0 Medals
Arizona:
can someone check out my essay i'm doing in my senior English class about the McD
2 days ago
1 Reply
0 Medals
IcedShots:
I was wondering, is there anybody on here around my age? Im turning 15 on December 1 ud83dude0a.
1 day ago
3 Replies
0 Medals
thatonenerd:
Use Hvap of water = 40.7 kJ/mol, c of water = 4.184 J/g.u00b0C, and molar mass of HO = 18.
3 days ago
5 Replies
0 Medals
letrasbonitasz:
Typography plays an important role in digital communication. Different font styles can make social media profiles, usernames, messages, and creative designs
5 days ago
3 Replies
1 Medal
Bounty:
tested love: im so over love it acquires patience i don't have trials an tribulations yet my souls the only one taken i give 90 you give 10 you say that you
3 days ago
7 Replies
2 Medals
SaltySuga:
is it possible to tell how deep a cut is by an open wound? like would i be able t
5 days ago
5 Replies
1 Medal