Show that, for real values of x, 3 sin x f(x) 2 + cos x cannot have a value greater than 3 or a value less than -V3.

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter7: Distance And Approximation
Section7.5: Applications
Problem 20EQ
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Show that, for real values of x,
3 sin x
f(x)
2 + cos x
cannot have a value greater than 3 or a value less than -V3.
Transcribed Image Text:Show that, for real values of x, 3 sin x f(x) 2 + cos x cannot have a value greater than 3 or a value less than -V3.
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