AP EAMCET Engineering 2011 Solved Paper

Section: Mathematics

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Question : 126 of 160

Marks: +1, -0

In a ΔABC, if acos2

C

2

+c cos2

A

2

=

3b

2

, thenthe sides of the triangle are in

an arithmetic progression
a geometric progression
a harmonic progression
an arithmetico-geometric progression

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