CUSAT 2021 BTech Solved Paper Shift 3

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Question : 196 of 250
 
Marks: +1, -0
In a triangle ABC, let ‌
2‌cos‌A
a
+‌
cos‌B
b
+‌
2‌cos‌C
c
=‌
a
bc
+‌
b
ac
. Then b2+c2 is equal to
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