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taniska Grade: 12
        
solve for x
tan^-1(x+2) + tan^-1(x-2) =tan^-1(8/79), x>0
3 years ago

Answers : (1)

Sher Mohammad
IIT Delhi
askIITians Faculty
174 Points
										taking tan both sides

(x+2+x-2)/(1-(x+2)(x-2))=8/79

79x= 8(1-x2+4)
8x2+79x+40=0

solve this quardatic for value of x
sher mohammad
b.tech, iit delhi

3 years ago
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