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The number of value of x in [0,2] at whi...

The number of value of `x in [0,2]` at which `f(x)=|x-1/2|+|x-1|+tan x` is not differentiable at

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`f(x)= |x - 1/2|+ |x-1| + tan x`
let `|x-1/2|` be g(x),
`|x-1|` be h(x)
`tan x` be k(x)
now, g(x)=`|x-1/2|`
at `x=1/2 ` g(x) is not differentiable
h(x) `= |x-1|`
at `x=1` h(x) is not differentiable
...
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