TS EAMCET 04 May 2019 Shift 2 Solved Paper

Section: Mathematics
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Question : 21 of 160
 
Marks: +1, -0
If A and B are acute angles satisfying 3cos2A+2cos2B = 4 and
3sinA
sinB
=
2cosB
cosA
, then A + 2B =
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