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Grade: 11
        In a ∆ABC, if A = 4π/9 and B = 2π/9 , then a² - b² is equal to
7 months ago

Answers : (1)

Arun
12364 Points
							
Dear Vishnu
Angle A = 80°
Angle B = 40°
Angle C = 60°
 
Now
 You can also find the sides 
 
Hence a² - b² can be easily calculated.
 
 
Regards
Arun (askIITians forum expert)
7 months ago
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