मुखेल आशय वगडाय
गुणकपद
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मूल्यांकन करचें
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वांटचें

\frac{\log_{e}\left(\left(\cot(\frac{e}{2})\right)^{2}+1\right)+2C}{2}
\frac{1}{2} गुणकपद काडचें.