mishikizovw8

mishikizovw8

Answered question

2022-04-17

Find L[f(t)] if f(x)={t2,0<t<2t1,2<t<37,t>3

Answer & Explanation

RizerMix

RizerMix

Expert2023-04-28Added 656 answers

To find L[f(t)], we need to use the Laplace transform of f(t), which is defined as:
[f(t)](s)=0estf(t)dt
Let's evaluate the Laplace transform of f(t) piecewise:
For 0<t<2:
[f(t)](s)=02estt2dt=2s3(s22s+2)
For 2<t<3:
[f(t)](s)=23est(t1)dt=e2ss2e3ss2e3ss
For t>3:
[f(t)](s)=3est(7)dt=7e3ss
Therefore, the Laplace transform of f(t) is given by:
[f(t)](s)={2s3(s22s+2)0<t<2e2ss2e3ss2e3ss2<t<37e3sst>3
Therefore, we have found the Laplace transform of f(t) for the given piecewise function.

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