maths paper 2 revision
any polygon sum of interior angles - (n-2)x180
regular polygon exterior angle - 360/n
regular polygon interior angle - 180-exterior angle
Area of a sector - x/360 x πr^2
length of arc - x/360 x circumference of full circle
speed equation - distance/time
Area of a trapezium - 1/2(a+b)h
Gradient - change in y/change in x
inverse function - write x=f(y)
rearrange to make x the subject
replace y with f^-1(x)
Frequency density - Frequency/class width
area of the bar in a histogram - frequency
parallel line gradient - the same
gradient in an equation - y=Mx+c
Product Rule - number of ways multiplied together
arithmetic sequence - an=a1+(n-1)d
geometric sequence - an=a1(r)^n-1
trigonometry - SOH CAH TOA
Pythagorean Theorem - a²+b²=c²
any polygon sum of interior angles - (n-2)x180
regular polygon exterior angle - 360/n
regular polygon interior angle - 180-exterior angle
Area of a sector - x/360 x πr^2
length of arc - x/360 x circumference of full circle
speed equation - distance/time
Area of a trapezium - 1/2(a+b)h
Gradient - change in y/change in x
inverse function - write x=f(y)
rearrange to make x the subject
replace y with f^-1(x)
Frequency density - Frequency/class width
area of the bar in a histogram - frequency
parallel line gradient - the same
gradient in an equation - y=Mx+c
Product Rule - number of ways multiplied together
arithmetic sequence - an=a1+(n-1)d
geometric sequence - an=a1(r)^n-1
trigonometry - SOH CAH TOA
Pythagorean Theorem - a²+b²=c²
