Maths Fomulas Term2 Flashcards
what is axb written as
ab
what is a divided by b written as
a/b
The sum of a and b is
a+b
The product of a and b is…
axb or ab
The difference between a and b is…
a-b
The quotient of a and b is…
a/b or a divided by b
Like Terms
Terms with the same pronumeral/s in whatever order
5ysquaredb and 5yb are not like terms becuase
they both need to have ysquared
5ysquaredb and and 5ybsquared are not like terms because
the powers belong to different pronumerals
are 5xy and 5yx like terms
yes
5xyb and 5xy are not like terms because
they don’t both have all the pronumerals present
H
hypotenuse
0 with a line through or a swoop
theta
fish like squiggle
alpha (means the same as theta in year 9 math)
0
opposite
A
adjacent
S
Sin
T
tan
C
cos
(nd)
nearest degree
coefficent
the number beside the pronumeral/s
constant term
the term or number that sits by itself without a pronumeral
-5 can be a constant term because
negative numbers are still valid constant terms
which side do you move the combined like terms to when using the unitary method
the side where there was the smaller coefficent before subtracting
Formula to find the shorter side of a triangle
hypotenuse squared - known side squared = unkown side squared
then put in sqaure root to find the unkown side by itself
Pythagoras Thereom
a squared + b squared = c squared
one short side squared + the other short side squared = hypotenuse squared
SOHCAHTOA
Sin theta = O/H
Cos theta = A/H
Tan theta = O/A
Area formula
lb
length x bredth
