the numerical value of Tan 20 + 40 + root tan20 tan40 whole square must be
jamal4:
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Tan(A+B) = tana + tanb/ 1- tanatanb
tan a = 40, tan b =20
Apply in the above formula You will get tan 60 value i.e root 3.
tan a = 40, tan b =20
Apply in the above formula You will get tan 60 value i.e root 3.
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