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how does 4sinA/2.sinB/2.cos(A+B)/2 = – ½ gives A=B=60 degrees ?

how does 4sinA/2.sinB/2.cos(A+B)/2 = – ½ gives A=B=60 degrees ?

Grade:11

2 Answers

Saurabh Koranglekar
askIITians Faculty 10336 Points
2 years ago
Dear student

Please write the complete Question or attach an image of the question

Regards
Vikas TU
14149 Points
2 years ago
Dear student 
Question is not clear 
Please attach an image, 
We will happy to  help you 
Good Luck
Cheers

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