Question

1. Prove the
7. Prove the following.
(i) (A+B, B+C, C+ A) = 2[ABC]
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Answer 1

Step-by-step explanation:

(solving LHS)

(2A+2B+2C)

Taking 2 common

2 (A+B+C)

NOW,

LHS=RHS

OR

2 (A+B+C)=2 (A+B+C)