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    Hello

    The question is:

    If f(x) is identically equal to sinx+cosx and x is greater than -0.25pi and less than 0.25pi, find the inverse function.

    I have no idea how to go about this. I know that I need to rearrange the equation so that I write x in terms of f(x) and then restrict the range of the inverse function but I have no idea how to write x in terms of f(x).

    Please help me
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    Rcos(x-a) maybe.
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    (Original post by Get me off the £\?%!^@ computer)
    Rcos(x-a) maybe.
    I do not know what you mean.
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    (Original post by Magu1re)
    Hello

    The question is:

    If f(x) is identically equal to sinx+cosx and x is greater than -0.25pi and less than 0.25pi, find the inverse function.

    I have no idea how to go about this. I know that I need to rearrange the equation so that I write x in terms of f(x) and then restrict the range of the inverse function but I have no idea how to write x in terms of f(x).

    Please help me
    let f(x)=y and on 2nd power
    y^2=1+sin2x ->x
 
 
 
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