AP EAMCET Engineering 22 Apr 2019 Shift 2 Paper

Section: Mathematics

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Question : 67 of 160

Marks: +1, -0

If f (x) =

1

9

|

xosx	1	0
1	2cosx	1
0	1	2cosx

| , then

d2f

dx2

=

cos 3x
cos (π + 3x)
sin 3x
sin (π + 3x)

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