Do not use a calculator, find the exact value for tan(x/2) without solving for x, when 0∘≤x≤360∘If csc x=7, and x is in quadrant II.(I have attached the correct answer, please prove it)

csc x=7sin x = 1/7cos x = √ [ 1 - (sin x)^2 ] = √ [ 1 - (1/7)^2] = √ [ 48/49] = 4√3 /7tan (x/2) = √ [ (1 - cos x )/(1 + cos x) ] tan (x/2) = √ [ (1 - 4√3 /7 )/(1 + 4√3 /7) ] tan (x/2) = √ [ (7 - 4√3 /7 )/7 / (7 + 4√3 )/7 ] tan (x/2) = √[(7 - 4√3)/(7 + 4√3)] (proved)

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