Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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Transcribed Image Text:Problem #9: Let
f(x) = 7x + tan (3x)
Find the inverval(s) on which ƒ is concave up.
(A) (-0, 0) (B) (-o, -). G. 00) (C) none
(D) (-) (E)(.) (F)(-~, ») (G) (0. ) (H)(-x,-)
Problem #9:
Select v
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