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9 June, 20:41

Given that sec x - tan x=1:4

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Answers (1)
  1. 9 June, 23:56
    0
    Answer:Let = tan2

    t

    =

    tan



    x

    2

    , then cos=1-21+2

    cos



    x

    =

    1

    -

    t

    2

    1

    +

    t

    2

    and tan=21-2

    tan



    x

    =

    2

    t

    1

    -

    t

    2

    .

    Now

    1+21-2+21-2 (1+) 21-21+1-tan2
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