math urgent

Prove : Tan20+4Tan20=√3

asked by Rabinprakash
  1. Can't be proven, because it is not true

    check:
    LS = tan20 + 4tan20
    = 5tan20
    = 1.8198...
    RS = √3
    = 1.732...
    LS ≠ RS

    posted by Reiny

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