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$Let f : [0, \frac{π}{2}] \to R be a function defined by f (x) = \max \{\sin x, cosx, \frac{3}{4}\}, then number of$ points where f(x) is non differentiable is

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Correct option is B

The graph of f(x) has 2 sharp points

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Let f:0,π2→R be a function defined by f(x)=maxsinx,cosx,34 , then number of points where f(x) is non differentiable is

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$Let f : [0, \frac{π}{2}] \to R be a function defined by f (x) = \max \{\sin x, cosx, \frac{3}{4}\}, then number of$ points where f(x) is non differentiable is