in a triangle ABC how to find maximum value of cosA + cosB + cosC
in a triangle ABC how to find maximum value of cosA + cosB + cosC
SANDEEP GERA , 8 Years ago
Grade 12
Trigonometry> in a triangle ABC how to find maximum val...
1 Answers
sonika p
Maximum Value is obtained when cosA = cosB =cosC
But, A+B+C = 180
thus A=B=C=60Cos 60 =1/2
Maximum value of Cos A+cosB+cosC = 3/2
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