Questions Flashcards

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25
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  1. To go from y =x to x =y, plot a graph of x against y, then rotate 90°anti clockwise then reflect in Y axis (draw arrows on the original x and y axis to help. Then between first and end step with the co ordinates of any points from the x=y graph
  2. Know that for a -x^2 the Turing point (a, b) in equation -(x -a)^2 +b
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26
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Remember the constraints that logs apply, it can never be negative

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27
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For a number to be an integer it cannot have any negative powers (as this would create a fraction)
One of the power laws is that the power can be distributed to the factors of the base.

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28
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29
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Good triangle splitting fraction technique
ALSO PLEASE REMEMBER IT IS R^2 NOT R

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30
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Check your solutions and be careful when substituting the hidden quadratic equations

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31
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32
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Just know that you can switch the integral sign

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33
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Know that log functions are strictly always increasing.
Know how to maximise / minimise equations

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34
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“Closest to origin” means smallest distance

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35
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Different method for completing the square with -1 as coefficient of x sqaured

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36
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Using logs in inequalities and approximating “in between “ of logs

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37
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38
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Watch the algebra

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39
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The reflected points and reflection line are perpendicular to one another
Don’t stop and keep going after finding intersection points

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40
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Logic?

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41
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42
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Substituting logs and see how many digits a number to the power of 10 has (one less)

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43
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Binomial expansion

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44
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45
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Know that the square root of a number less than 1 (0.7) is greater than the number itself. Just like how squaring a number less than one gives a smaller number

46
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Using matrices in simultaneous

47
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Trapezium rule

48
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Minimum point

49
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Don’t forget the 10s (those numbers ending in digit 0)

50
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Really hard trigonometry question considering extreme values of sin and cos

51
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52
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Draw a quadratic and a quartic together:

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53
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54
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KNOW that sin^2(°) and cos ^2 (°) can never both be =0 , as this is true for no value of sin^2 + cos^2 =1

55
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What are the characteristics of a positive quartic , “with 4 real solutions “?

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56
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charactertistics of a quartic

57
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59
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60
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61
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“Intersects “ means the discriminant is greater than or equal to zero (could be one or two solutions )

62
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Acknowledge the 2n hinting towards two separate series in one

63
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Diving through by cos ^2 to create a tan. BUT checking that cos (x) != 0 for this to happen

64
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Characteristics of the sin^2 graph include: no negative y values, maxima and minima always occur at 0 and 1. Also manipulating sin to find the roots of sin (root x) to find that the roots are not evenly spaced

65
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Just keep on subbing in values and trying to

66
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Fundamental Therom of calculus

67
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Plotting log/ exponential graphs with inequalities

68
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Approach all “must be trues” with an initial guinea pig.
Know that a square is also a rectangle
Know that the cube /square of decimals is so small

69
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“Largest value” for which previous term is greater than next term is minimum value -1

70
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Knowing sin values and working in radians really well. Drawing a clear graph and understanding the question

71
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Sine rule and diagram manipulation

72
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When you get to the sin^2 cos^2 phase sub in the 1=c^2 +s^2

73
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Integrating as a function properly using equations

74
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Cancelling out logs in powers

75
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Sequences question

76
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What are translational sin formula?

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77
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78
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79
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80
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Integrating and substituting, integrating with constant

81
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82
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How does the trapezium rule work?

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Please remember to draw in trapeziums from the last point NOT TRIANGLES

83
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Consider what goes on between the integer functions

84
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85
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Always check solutions esp if logs or square roots are involved

86
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What is the general shape of x2, x3, x4, x5, x6 on one graph

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87
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88
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Square all terms

89
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Look carefully at question before diving in

90
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91
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92
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93
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Sometimes just look at options and substitute values

94
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95
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What are the angle formula for a circle in radians?

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96
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Sin (180 - °) = °

97
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98
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Square rooting a square and quartic

99
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Check the leading coefficients rather than just looking at the power, because they can cancel each other out

100
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Get used to quickly differentiating to find the turning point of a graph to plot an overall shape. Look at the answers in the multiple choice to help you decide where you are heading

101
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Know this other equation used to represent a circle. In co ordinate geometry questions, look for things like if it is on the line y=x

102
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103
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104
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105
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106
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Using the cases of tending to infinity and tending to zero

107
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Sometimes minimum values can become maximum

108
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Multi nominal expansion and grouping

109
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More multi nominal expansion

110
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Looking at patterns of sums

111
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112
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Dummy variable and integrating each component of equation separately to get desired result