Let \( \mathrm{f} \) be a differentiable function satisfying \( \in... VIDEO
Let \( \mathrm{f} \) be a differentiable function satisfying \( \int_{0}^{f(x)} f^{-1}(t) d t-\int_{0}^{x}(\cos t-f(t)) d t=0 \) and \( f\left(\frac{\pi}{2}\right)=\frac{2}{\pi} \)https://bit.ly/YTAI_PWAP https://www.pw.live
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