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    The question will either state it or give a fraction using π, for example 0<X<π/2
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    If a question asks you for an exact answer or the answer between, for example, 0 and 2(Pi sign), then you're answering in radians and in terms of Pi. If it doesn't ask for this, asks for an answer to 3dp or sf, or it asks, for example, an answer between 0 and 180, then answer in degrees. In other cases questions usually tell you what to answer in and the more questions you do, you'll be able to recognise which one it's asking for. Hope this helps )
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    So for this question, it'll be in radians (because its asking for an exact answer)?
    LilN jsk800
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    (Original post by TSlayerr)
    So for this question, it'll be in radians (because its asking for an exact answer)?
    LilN jsk800
    Calculus is always done in radians.

    d/dx(sin x) = cos x is true only if x is in radians
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    (Original post by TSlayerr)
    So for this question, it'll be in radians (because its asking for an exact answer)?
    LilN jsk800
    Ooo nope don't think so, part 2 to that question isn't a trig question and part 1 is just proving rather than working anything out. Think the answer to part 2 is probs just a fraction of some sort
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    (Original post by TSlayerr)
    So for this question, it'll be in radians (because its asking for an exact answer)?
    LilN jsk800
    It will be in radians because you are doing calculus
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    (Original post by LilN)
    Ooo nope don't think so, part 2 to that question isn't a trig question and part 1 is just proving rather than working anything out. Think the answer to part 2 is probs just a fraction of some sort
    Actually, yeah sorry, didn't read the question properly. Answer in radians and solve it by replacing the equation with integral of cos^2 theta. Sorry aha, it's been a long day
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    (Original post by LilN)
    Actually, yeah sorry, didn't read the question properly. Answer in radians and solve it by replacing the equation with integral of cos^2 theta. Sorry aha, it's been a long day
    Thanks for your help
 
 
 
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