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    Name:  14840556350811770128893.jpg
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Size:  289.5 KB for 8b) I obtained 2 solutions which are not included in the Mark scheme but by subbing it back into the equation , it does show that it works.Attachment 610328610330
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    +- 0.5 pi isn't in the Mark scheme. Thanks
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    (Original post by coconut64)
    +- 0.5 pi isn't in the Mark scheme. Thanks
    I don't see anything wrong with your answers. Can you post the mark scheme?
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    (Original post by DFranklin)
    I don't see anything wrong with your answers. Can you post the mark scheme?
    are you sure?
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    (Original post by newblood)
    are you sure?
    Fairly. Wolfram Alpha also seems to agree. But always possible I'm wrong, that's why I asked for the mark scheme.
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    That's a simple question and you did it well! The angle is just theta so you're answers shouldn't be too bad.
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    (Original post by DFranklin)
    Fairly. Wolfram Alpha also seems to agree. But always possible I'm wrong, that's why I asked for the mark scheme.
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    (Original post by coconut64)
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    It's right there on the line thats starts costheta=....

    There are 6 solutions in total (as you can see from the graph)
 
 
 
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