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Let f:[0,4π]→[0,π] be defined by f(x)=cos−1(cosx). The number of points x∈[0,4π] satisfying the equation f(x)=10−x10 is

Answer» Let f:[0,4π]→[0,π] be defined by f(x)=cos−1(cosx). The number of points x∈[0,4π] satisfying the equation f(x)=10−x10 is


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