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(sin 18^@)/( cos 72 ^@) = ?...

` (sin 18^@)/( cos 72 ^@) = ? `

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Evalute: (b) (sin18^(@))/(cos72^(@))

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Knowledge Check

  • (sin 70^(@) + cos 40^(@))/(cos 70^(@) + sin 40^(@)) =

    A
    `1`
    B
    `(1)/(sqrt3)`
    C
    `sqrt3`
    D
    `(1)/(2)`

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