Guest

If cosA + cosB +cosC =-3/2 then A,B,C are equal to:

If cosA + cosB +cosC =-3/2 then A,B,C are equal to:

Question Image
Grade:11

1 Answers

Krutarth
38 Points
5 years ago
The triangle is equilateral ,ie. all angles..A,B,C=60degree
cos(60)+cos(60)+cos(60)
=3cos(60)
= 3(1/2)
= 3/2

Think You Can Provide A Better Answer ?

ASK QUESTION

Get your questions answered by the expert for free