Finding particle probability without wave function given

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Saptarshi Sarkar
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Homework Statement
If the operator ##\hat A = i(\hat x^2 + 1)\frac d {dx} + i\hat x## is Hermitian, then calculate the probability of finding a particle (satisfying the condition ##\hat Aψ(x) =0##) in the region -1<x<1.
Relevant Equations
P = ##\int_{-1}^1 {|ψ|}^2 \, dx##
I know how to calculate the probability of finding the particle in a region by integrating the mod square of the wave function within that region. But in this question only the operator is provided but not the wave function. I am not sure how am I supposed to proceed with this problem.
 
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An explicit wave function wasn't given, but one was implicitly provided. It's the one that satisfies ##\hat A \psi = 0##. But first you need to determine if ##\hat A## is Hermitian.
 
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I must admit I'm struggling to make sense of that condition. ##\hat A## doesn't look Hermitian. And how would that affect the differential equation for ##\psi##?
 
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