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Laplace Transform question 
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#1
Nov2312, 01:40 AM

P: 3

this one stumped me..
d^2y/dt^2 +ωy=ksin((√ω)t) y(∏/4)=0, y'(∏/4)=0 the left hand side is easy and i understand that i need to convert T=t∏/4, therefore replace t with T+∏/4..but the (√ω) throws me off ..tried trig identities but just gets more complicated → (s^2 + ω)U(s)= LT {ksin((√ω)(T+∏/4)} is as far as i can get (i know what to do with the left hand side once i get the LT of the right hand side but i dont know what to do with the sin value) 


#2
Nov2312, 02:52 PM

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