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calculate-z-1-tanz-z-dz-




Question Number 130391 by mathmax by abdo last updated on 25/Jan/21
calculate ∫_(∣z∣=1)    ((tanz)/z)dz
$$\mathrm{calculate}\:\int_{\mid\mathrm{z}\mid=\mathrm{1}} \:\:\:\frac{\mathrm{tanz}}{\mathrm{z}}\mathrm{dz} \\ $$

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