uppon 1 i didn`t understood

root is there for whole 3/2 or only 3 ??

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uppon 1 i didn`t understood

root is there for whole 3/2 or only 3 ??

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cosb =root3/2 b=30 degree

as we knw

(tanA-tanB)/1+tanAtanB= tan(A-B) where A=60 degree and b= 30 degree

hence tan(60-30)=tan30= 1/root 3

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Actually, it can be done also, as Sin (A-B) / cos (A-B)

Also, A= 60 deg, B = 30 deg

Tan (a-B) = tan 30 deg = 1/√3

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