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Signal and system homework

vick5821

Jan 22, 2012
700
Joined
Jan 22, 2012
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700
Dear all,

100_9040_zps3c61531f.jpg

For the first question, I am stuck in c) and d), can anyone guide me ?
Do I do it correctly in a) and b) ?

100_9041_zps4d582e0e.jpg

For 2nd question, since for(i), there is no t there, is that means I evaluate the cos and get a value, then I integrate it ?

How bout for (ii) too ?

For this 3rd question, how can I solved for whether the signal is energy or power ?
100_9043_zps77653876.jpg


And for this last question, did I do it correctly ?
100_9044_zps00f18f70.jpg


Correct me if I am wrong ><
I am so confuse ><

Thanks

Urgent!
 
Last edited:

(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
Moderator
Jan 21, 2010
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part iii is clearly periodic, it seems to be a simple sin function
 

vick5821

Jan 22, 2012
700
Joined
Jan 22, 2012
Messages
700
I just write my answer based on what I seen and observe ? No need working ?

Thanks
 
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