Maths AQA GCSE Higher

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288 Terms

1
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area of a circle

2
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surface area of a sphere

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surface area of a cone

πr x slanted length x πr^2

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volume of cone

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volume of a sphere

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area of trapezium

1/2(a+b) x height

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circumference of a circle

π x d

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volume of a cuboid

l x w x h

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volume of a cylinder

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volume of a pyramid

1/3 x area of base x h

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distance

speed x time

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density

mass/volume

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pressure

force/area

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Pythagoras' Theorem

a^2 + b^2 = c^2

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Quadratic equation

when ax^2 + bx + c = 0

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Sine rule

a/sinA = b/sinB = c/sinC

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Cosine rule

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Area of a triangle

1/2 x a x b x sinC

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area of a sector

angle/360 x area of full circle

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segment area

sector area - area of triangle

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x angles

equal

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corresponding angles

equal

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alternate angles

equal

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co-interior angles

add to 180

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total of exterior angles

360

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1 exterior angle

360/number of sides

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sum of interior angles

(sides - 2) x 180

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sin/cos/tan 45, lengths=

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sin/cos/tan 30 or 60, lengths=

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a^m x b^n

ab^m+n

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a^m / b^n

a/b^m-n

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a^0

1

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a^1

a

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(a^m)^n

a^mxn

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(a/m)^n

a^n/m^n

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a^-m

1/a^m

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a^1/m

^m√a

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a^m/n

(^n√a)^m

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3D Pythagoras' theorem

a^2 + b^2 + c^2 = d^2

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when to use cosine rule

2 sides and an angle enclosed by them all 3 sides no angle

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when to use sine rule

2 angles any side 2 sides and an angle thats not enclosed by them

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inverse functions

replace x's with y's and make everything equal to x make y the subject replace the y with f^-1(x)

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y=f(x)+a

translation in the y-axis (move up or down by the amount of a eg. +2 = move up 2)

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y=f(x+a)

translation in the x-axis (but if it says +2 move down 2 ITS OPPOSITE!!)

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y=f(xa)

stretch in the x direction (leaving the y values unchanged) by a factor of 1/a

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y=f(x/a)

stretch in the x direction (leaving the y values unchanged) by a factor of a

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y=-f(x)

reflection in the x-axis

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y=f(-x)

reflection in the y-axis

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not a member of a set

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member of a set

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ξ

universal set (all the numbers in the Q)

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union (combination of all members of each set in question)

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intersect (all numbers that are members of exclusively both sets in question)

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'

Everything NOT in the set

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√a x √b

√a x b

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√a / √b

√a/b

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√a + √b

DO NOTHING

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a/ √b

a/√b x √b/√b = a√b/b

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'exact value' meaning

surd form

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when to use quadratic formula

if it wont factorise if the question mentions decimal places or significant figures

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dividing fractions

KEEP TIMES SWITCH- KTS

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common denominator is also....

something both denominators divide into

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fibonacci sequence

adding together the 2 previous terms

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how to know if 2 lines are perpendicular

if gradient is m perpendicular will be -(1/m)

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cubic graph

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reciprocal graph (positive)

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exponential graph

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gradient

vertical/horizontal or ycoord/xcoord

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estimated gradient of a curve

tangent to curve (meets curve at point your trying to find) then calculate gradient

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compound interest

amount x percentage^years

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how to know if 2 lines are parallel

gradients are the same

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quadratic graph

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how to find equation for a tangent to a circle

find gradient (ycoord/xcoord) use gradient to find perpendicular -(1/m) put coords into y=mx+c to find c where m is -(1/m)

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circle equation

x^2+y^2 = r^2

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2 consecutive numbers

n, n+1

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2 consecutive odd numbers

2n+1, 2n+3

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2 consecutive even numbers

2n, 2n+2

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sin 0

0

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sin 30

0.5

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sin 45

1 / √2

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sin 60

√3 / 2

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sin 90

1

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cos 0

1

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cos 30

√3 / 2

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cos 45

1 / √2

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cos 60

0.5

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cos 90

0

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tan 0

0

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tan 30

1 / √3

90
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tan 45

1

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tan 60

√3

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tan 90

DOES NOT EXIST

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x^2 > a^2

x > a x < -a

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x^2 < a^2

-a < x < a

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how to solve a simultaneous equation by plotting a line and circle graph

the coordinates where the line meets the circle are the solutions

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2:3 =

2/3

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y is proportional to x

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y is inversely proportional to x

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y is proportional to x squared

exponential graph

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percentage change=

(new value/original) x100