If cosA+cosB+cosC=-3/2 and also A+B+C=360 then the value of A , B and C is equal to..
If cosA+cosB+cosC=-3/2 and also A+B+C=360 then the value of A , B and C is equal to..
Pranav Jain , 7 Years ago
Grade 11
Trigonometry> If cosA+cosB+cosC=-3/2 and also A+B+C=360...
1 Answers
Arun
Dear student
Cos A + cos B + cos C = -3/2 is a minimum value.
That occurs when A = B = C = 120Β° = 2 *pi/3
Hope it helps
Approved Last Activity: 7 Years ago
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