Let $ y(x)=(1+x)\left(1+x^{2}\right)\left(1+x^{4}\right)\left(1+x^{8}\right)\left(1+x^{16}\right) $ Then $ y^{\prime}-y^{\prime \prime} $ at $ x=-1 $ is equal to [JEE Main 2023, 25 Jan (Shift 1)]

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Let \( y(x)=(1+x)\left(1+x^{2}\right)\left(1+x^{4}\right)\left(1+x^{8}\right)\left(1+x^{16}\right) \) Then \( y^{\prime}…

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