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    (Original post by Dorisdolphine)
    is it -5/6 or 5/6?
    5/6
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    (Original post by Alex.trin)
    Surely it can't be simplified as 36 isn't divisible by 5?
    yeah but if it's the square root of -25/36, you can square root both the top and bottom of the fraction to get -5/6
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    (Original post by lily628)
    yeah but if it's the square root of -25/36, you can square root both the top and bottom of the fraction to get -5/6
    its not negative 5/6 , its positive
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    For the obtuse angle question
    Did anyone else get cosx =-5/6
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    (Original post by chelseafc141)
    For the obtuse angle question
    Did anyone else get cosx =-5/6
    I got -5/6 as well
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    (Original post by Alex.trin)
    Surely it can't be simplified as 36 isn't divisible by 5?
    Ohhhhh I seen, you square root them. Hopefully I've only lost 1 marks
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    (Original post by ihatehannah)
    its not negative 5/6 , its positive
    The angle is obtuse so X would lie in the sin quadrant so cos x would be negative
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    oh yeah its negative my bad
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    -5/6 its obtuse a positive would be acute


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    (Original post by ihatehannah)
    its not negative 5/6 , its positive
    i put that too, but everyone is saying bc it's obtuse it's -5/6
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    (Original post by Dorisdolphine)
    Ohhhhh I got 80 😂
    I got -80
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    what-did-u-lads-get-for-the-circle-therom-question
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    (Original post by vishantu_success)
    what-did-u-lads-get-for-the-circle-therom-question
    lol
    39
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    For the question about n is towards infinity did anyone get 5/3?
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    (Original post by SmithAmelia)
    Could anyone who has successfully finished the last question please explain how they reached their answer? Thanks
    I did the cosA= version of the cosine rule and came to the conclusion that w=3n which means 2 sides were equal to 3n so it was isosceles.
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    what did everyone get for the matrix q
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    (Original post by lily628)
    lol
    39
    I did too!
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    (Original post by Mattyates2000)
    For the question about n is towards infinity did anyone get 5/3?
    ahhh 3/5 is what i put...
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    (Original post by lily628)
    lol
    39
    I got 39 too
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    (Original post by Dorisdolphine)
    ahhh 3/5 is what i put...
    Oh yh sorry that was what I meant
 
 
 
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