Question 1: Let f(x) = In(x? +x + 1), x € [-1,-5. Find (if any exists) B) min, f(x). C) sup f(x). inf, f(x) А) max, f(x). xej-1 D) zel-1,

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter6: Vector Spaces
Section6.5: The Kernel And Range Of A Linear Transformation
Problem 30EQ
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Question 1: Let f(x) = In(x? + x + 1), x€ [-1,-. Find (if any exists)
A) max, f(x).
rej-1
B) min, f(x),
xel-1,
C) sup f(x).
xel-1-
inf, f(x)
D)
IE|-1,
Explain and show your work.
Transcribed Image Text:Question 1: Let f(x) = In(x? + x + 1), x€ [-1,-. Find (if any exists) A) max, f(x). rej-1 B) min, f(x), xel-1, C) sup f(x). xel-1- inf, f(x) D) IE|-1, Explain and show your work.
Question 2: Show that the set S = {rVT + V2:rE Q) is dense in IR. Explain and show your work.
Transcribed Image Text:Question 2: Show that the set S = {rVT + V2:rE Q) is dense in IR. Explain and show your work.
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