If tan^2 (π-a)/4 +tan^2 (π-b)/4
+ tan^2 (π-c)/4 = 1, then ∆ABC is
a. equilateral
c. scalene
b. isosceles
d. none of these
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Answer:
Here all Sides are equal ...By Tan²(π-0) is tan only then it is a Equaletaral triangle
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