Given f(x, y, z) = In(x² + y? + z?), show that 2 dy? d22 x2 + y2 + 22

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Given f(r, y, z) = In(x² + y² + z²), show that
2
+
dy?
r2 + y? + z2
Transcribed Image Text:Given f(r, y, z) = In(x² + y² + z²), show that 2 + dy? r2 + y? + z2
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