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GCSE Edexcel Maths Higher.Questions and answers are gradedA+
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GCSE Edexcel Maths Higher
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GCSE Edexcel Maths Higherarea of a circle - answer
surface area of a sphere - answer
surface area of a cone - answerπr x slanted length x πr^2
volume of cone - answer
volume of a sphere - answer
area of trapezium - answer1/2(a+b) x height
circumference of a circle - answerπ x d
volume of a cuboid - answerl x w x h
volume of a cylinder - answer
volume of a pyramid - answer1/3 x area of base x h
distance - answerspeed x time
density - answermass/volume
pressure - answerforce/area
Pythagoras' Theorem - answera^2 + b^2 = c^2
Quadratic equation - answerwhen ax^2 + bx + c = 0
Sine rule - answera/sinA = b/sinB = c/sinC
Cosine rule - answer
Area of a triangle - answer1/2 x a x b x sinC
area of a sector - answerangle/360 x area of full circle
segment area - answersector area - area of triangle
x angles - answerequal
,corresponding angles - answerequal
alternate angles - answerequal
co-interior angles - answeradd to 180
total of exterior angles - answer360
1 exterior angle - answer360/number of sides
sum of interior angles - answer(sides - 2) x 180
sin/cos/tan 45, lengths= - answer
sin/cos/tan 30 or 60, lengths= - answer
a^m x b^n - answerab^m+n
a^m / b^n - answera/b^m-n
a^0 - answer1
a^1 - answera
(a^m)^n - answera^mxn
(a/m)^n - answera^n/m^n
a^-m - answer1/a^m
a^1/m - answer^m√a
a^m/n - answer(^n√a)^m
3D Pythagoras' theorem - answera^2 + b^2 + c^2 = d^2
when to use cosine rule - answer2 sides and an angle enclosed by them
all 3 sides no angle
when to use sine rule - answer2 angles any side
2 sides and an angle thats not enclosed by them
inverse functions - answerreplace x's with y's and make everything equal to x
make y the subject
replace the y with f^-1(x)
, y=f(x)+a - answertranslation in the y-axis (move up or down by the amount of a eg. +2 =
move up 2)
y=f(x+a) - answertranslation in the x-axis (but if it says +2 move down 2 ITS
OPPOSITE!!)
y=f(xa) - answerstretch in the x direction (leaving the y values unchanged) by a factor of
1/a
y=f(x/a) - answerstretch in the x direction (leaving the y values unchanged) by a factor
of a
y=-f(x) - answerreflection in the x-axis
y=f(-x) - answerreflection in the y-axis
∉ - answernot a member of a set
∈ - answermember of a set
ξ - answeruniversal set (all the numbers in the Q)
∪ - answerunion (combination of all members of each set in question)
∩ - answerintersect (all numbers that are members of exclusively both sets in question)
' - answerEverything NOT in the set
√a x √b - answer√a x b
√a / √b - answer√a/b
√a + √b - answerDO NOTHING
a/ √b - answera/√b x √b/√b = a√b/b
'exact value' meaning - answersurd form
when to use quadratic formula - answerif it wont factorise
if the question mentions decimal places or significant figures
dividing fractions - answerKEEP TIMES SWITCH- KTS
common denominator is also.... - answersomething both denominators divide into
fibonacci sequence - answeradding together the 2 previous terms
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