7.2 Give an & - 8 pr at (1 continuous (2x - 2).
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:7.2
Give an & -8 proof that the function f:R³ →R defined
continuous at (1, 1, 1). Hint: x2y + 2xz²
(2x - 2).
by f(x, y, z)
- 3 = (x²y - y) + (y− 1) + (2xz²
= x²y + 2xz²
- 2x)
is
+
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