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If costheta =4/5,then find the value of ...

If `costheta =4/5`,then find the value of `sin2theta`.

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If costheta =4/5 ,then find the value of tan2theta .

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Knowledge Check

  • If 3costheta-4sintheta=5 then find the value of 3sintheta+4costheta

    A
    1
    B
    2
    C
    0
    D
    None of the above

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