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Question Number 143238 by BHOOPENDRA last updated on 11/Jun/21
Answered by mathmax by abdo last updated on 11/Jun/21
Φ=∫Ccos(πz2)+sin(πz2)(z+1)(z+2)dzletΨ(z)=cos(πz2)+sin(πz2)(z+1)(z+2)the[poles[ofΨare−1and−2⇒∫CΨ(z)dz=2iπ{Res(Ψ,−1)+Res(Ψ,−2)}Res(Ψ,−1)=cos(π)+sin(π)1=−1Res(Ψ,−2)=cos(4π)+sin(4π)−1=−1⇒∫CΨ(z)dz=2iπ(−1−1)=−4iπ⇒Φ=−4iπ
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