AP EAMCET Engineering 2018 Apr 23 Shift 1 Paper

Section: Mathematics

© examsiri.com

Question : 27 of 160

Marks: +1, -0

In Δ ABC , a3 . cos (B - C) + b3 . cos (C - A) + c3 . cos (A - B) =

a b c
a + b + c
2 abc
3 abc

Go to Question:

Prev Question

Next Question