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Edexcel GCSE Maths Calculator Paper June 9th 2016 Potential Topics watch

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    ESSENTIALS

    Quadratics using formula (beware of negative "b" values)
    Sine and Cosine
    Trigonometry and Pythagoras
    Bounds calculations (give answer to "suitable" number of decimal places)
    Algebraic fractions
    Indices (negative/ fractional)
    Estimate of mean from frequency tables
    cumulative Frequency?
    Area and circumference of Circles
    Volumes and Areas of 3D Shapes ( frustums, spheres, cones, pyramids)

    Trial and Improvement
    Simultaneous Equations (linear, maybe with decimal answers)
    Simultaneous Equations (with one quadratic)
    Exchange Rates
    Compound Interest
    Similar Shapes (area and volumes)
    Stratified Sampling
    Percentage Increase/ Decrease
    Histograms (complete Table and "graph"-type, and other types)
    Enlargement (maybe negative scale factor)

    Stem and Leaf
    Pie Charts
    Recipes
    Scatter Graphs
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    Non-right angled triangles Hints (sine and COSINE rules)

    When finding a length, if you are given the other 2 lengths and the ENCLOSED angle, use the COSINE rule.
    If you don't have the above, go straight to the sine rule.


    When finding an angle, if you are given the 3 lengths, use the COSINE rule.
    If you don't have all 3 lengths, go straight to the sine rule.
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    Thanks for these!
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    Transformations of sin and Cosine curves
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    even vectors
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    (Original post by unknown2914)
    even vectors
    ...but vectors came up in non-calculator so unlikely.
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    Thankyou! What about bearings? And congruend triangles or geometry questions?
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    (Original post by rose.i)
    Thankyou! What about bearings? And congruend triangles or geometry questions?
    ya even tht
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    what do u mean beware of negative b in the quadratic formula, that's one of the main things to do while using the formula
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    thanks for this
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    (Original post by sali__x)
    what do u mean beware of negative b in the quadratic formula, that's one of the main things to do while using the formula
    Some people make the mistake of whether the -b is a negative or not. So for example, the b value could be '-4', therefore people end up putting -b as -4 when really it's -(-4) which is +4
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    (Original post by Jiff)
    Some people make the mistake of whether the -b is a negative or not. So for example, the b value could be '-4', therefore people end up putting -b as -4 when really it's -(-4) which is +4
    No this is not the problem. It is when a -b value is put into the root, the calculator squares b and then puts a negative sign in front of it; this is not what you want !!!
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    (Original post by DrPeter)
    No this is not the problem. It is when a -b value is put into the root, the calculator squares b and then puts a negative sign in front of it; this is not what you want !!!
    Oh okay, that's what happens at our school a lot, thanks for correcting me though.
 
 
 
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