PRECALCULUS FORMULAS
SEMESTER 2
Permutation
P(n,r) =
n!
(n-r)!
Magn
itude
a vect
of
or wit
h 2 po
ints
Component
form
Combination
C(n,r)=
n!
r!(n-r)!
e
u
l
a
V
d
e
t
c
e
p
Ex
.
.
.
+
)
x
(
P
*
x
+
)
EV = x*P(x
x-- outcome
ity
l
i
b
a
b
o
r
p
)
P(x
Direction of
a vector
Determinant
Inverse of a matrix