In (\Delta ABC. a^3 . \cos (B - C) + b^3 . \cos(C - A) + c^3... | Mathematics | SolveeIt | Solveeit

Today, August 24

Question

In $\Delta ABC. a^3 . \cos (B - C) + b^3 . \cos(C - A) + c^3 . \cos (A - B) =$

A

$a \, b \, c$

B

$a + b + c$

C

$2 \, a b c$

D

$3 \, a b c$

Answer

$3 \, a b c$

Explanation

Solution

Answer (d) $3 \, a b c$