AP EAMCET Engineering 20 Apr 2019 Shift 1 Paper

Section: Mathematics

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Question : 26 of 160

Marks: +1, -0

In triangle ABC , if

b+c

9

=

c+a

10

=

a+b

11

, then

cosA+cosB

cosC

=

9
10
10
11
11
12
12
13

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