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**1. Homework Statement**

find f(x) which satisfies f(x) = x + ##\frac{1}{\pi}## ##\int_{0}^{\pi} f(t) \sin^2{t} \ d(t)##

**2. Homework Equations**

**3. The Attempt at a Solution**

to solve f(x), I have to solve the integral which contains f(t). And f(t) is the f(x) with variable t? if yes, I will get integral within integral and within integral. Or what... should I do?