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which is also the periodic solution of
the differential equation X dot plus two
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the differential equation X dot plus two
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the differential equation X dot plus two
x dot plus 4x equals
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x dot plus 4x equals
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x dot plus 4x equals
the square wave function so the square
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the square wave function so the square
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the square wave function so the square
wave function is periodic function with
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wave function is periodic function with
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wave function is periodic function with
period 2pi it's defined as minus 1 and 1
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period 2pi it's defined as minus 1 and 1
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period 2pi it's defined as minus 1 and 1
on the intervals minus prior to 0 and 0
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on the intervals minus prior to 0 and 0
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on the intervals minus prior to 0 and 0
to PI and we know that the square wave
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to PI and we know that the square wave
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to PI and we know that the square wave
function has the following Fourier
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function has the following Fourier
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function has the following Fourier
series
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series
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series
so let you think about this problem for
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so let you think about this problem for
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so let you think about this problem for
a moment and I'll come back in a second
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hi everyone welcome back
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hi everyone welcome back
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hi everyone welcome back
okay so the reason we've been studying