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    Can someone help with 11 part (ii) and (iii) and 12 part (iii)

    On part 2 I got to the step of 0.5 x root 160 x root 40.

    Does it expect us to do this, or is there a simpler way of approaching? I just did the long way lol of working out the square root of 1600 which is 40..

    And I have no idea what to do for (iii) Once I can get the first step of proving it I can do the rest.

    Oh and when the questions say show that the equation of blah blah blah has only one real root. Is that just asking b^2 - 4ac = 0 ?


    question 6.


    For 11 part two, it's best to draw a diagram and then join the points up

    Find the heigh and times this by the length and divide by 2

    Sorry, haven't got time to do the rest
    I've got an exam in an hour 😂

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Updated: May 12, 2015

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