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Grade: 11
        
Please answer the question attached in image
_______________________________
one month ago

Answers : (1)

Ajitha
20 Points
							
a=3 , b=5 cos (A-B)=7/25 = (1- tan^2(A-B)/2)/(1+tan^2(A-B)/2)
25-25tan^2(A-B)/2=7+7 tan^2(A-B)/2
tan(A-B)/2=3÷4
tan(A-B)/2 =(a-b)/(a+b) cot c/2
tan c/2 .3/4=l(-3/4)l
tan c/2 = 1/3
28 days ago
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