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In: Advanced Math

The function described by f(x) = ln(x2 + 1) − e0.4x cos πx has an infinite...

The function described by f(x) = ln(x2 + 1) − e0.4x cos πx has an infinite number of zeros.

(a) Determine, within 10−6, the only negative zero.

please don't use any program while solving it, thanks.

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