Mathematics: applications and interpretation formula booklet
Diploma Programme
Mathematics: applications and interpretation formula booklet
For use during the course and in the examinations First examinations 2021 Version 1.1
? International Baccalaureate Organization 2019
Contents
Prior learning
SL and HL
2
HL only
2
Topic 1: Number and algebra
SL and HL
3
HL only
4
Topic 2: Functions
SL and HL
5
HL only
5
Topic 3: Geometry and trigonometry
SL and HL
6
HL only
7
Topic 4: Statistics and probability
SL and HL
9
HL only
10
Topic 5: Calculus
SL and HL
11
HL only
11
Prior learning ? SL and HL
Area of a parallelogram
A = bh , where b is the base, h is the height
Area of a triangle
A = 1 (bh) , where b is the base, h is the height 2
Area of a trapezoid Area of a circle
=A 1 (a + b) h , where a and b are the parallel sides, h is the height 2
A = r2 , where r is the radius
Circumference of a circle
C= 2r , where r is the radius
Volume of a cuboid
V = lwh , where l is the length, w is the width, h is the height
Volume of a cylinder
V = r2h , where r is the radius, h is the height
Volume of prism
V = Ah , where A is the area of cross-section, h is the height
Area of the curved surface of A= 2rh , where r is the radius, h is the height
a cylinder
Distance between two
points (x1, y1) and (x2 , y2 )
d = (x1 - x2 )2 + ( y1 - y2 )2
Coordinates of the midpoint of a line segment with endpoints
(x1, y1) and (x2 , y2 )
x1
+ 2
x2
, y1
+ 2
y2
Prior learning ? HL only
Solutions of a quadratic equation
The solutions of ax2 += bx + c =0 are x -b ? b2 - 4ac , a 0 2a
Mathematics: applications and interpretation formula booklet
2
Topic 1: Number and algebra ? SL and HL
SL The nth term of an
1.2 arithmetic sequence
un = u1 + (n -1) d
The sum of n terms of an
arithmetic sequence
Sn=
n 2
(
2u1
+ (n -1) d ) ;
Sn=
n 2
(u1
+
un
)
SL The nth term of a
1.3 geometric sequence
un = u1r n-1
fTinhietesguemomoef tnrictesremqsueonf ca= e Sn
u= 1(rn -1) r -1
u1(1 - rn ) , r 1 1- r
SL Compound interest 1.4
FV =
PV
?
1
+
r 100k
k n
,
where
FV
is
the
future
value,
PV is the present value, n is the number of years,
k is the number of compounding periods per year,
r% is the nominal annual rate of interest
SL 1.5
Exponents and logarithms ax = b x = loga b , where a > 0, b > 0, a 1
SL 1.6 Percentage error
=
vA - vE vE
?100% , where vE is the exact value and vA is
the approximate value of v
Mathematics: applications and interpretation formula booklet
3
Topic 1: Number and algebra ? HL only
AHL Laws of logarithms 1.9
log= a xy loga x + loga y lo= ga xy loga x - loga y loga xm = m loga x
for a, x, y > 0
AHL The sum of an infinite 1.11 geometric sequence
AHL 1.12
Complex numbers Discriminant
S
=
u1 1- r
,
r
< 1
z= a + bi
= b2 - 4ac
AHL 1.13
Modulus-argument (polar) and exponential (Euler) form
z =r (cos + isin ) =rei =r cis
AHL 1.14
Determinant of a 2 ? 2 matrix
A = ac
b
d
det A =A
= ad - bc
Inverse of a 2 ? 2 matrix
=A
a
c
b
d
A=-1
1 d
det
A
-c
-b a
,
ad
bc
AHL 1.15
Power formula for a matrix M n = PDn P -1 , where P is the matrix of eigenvectors and D is
the diagonal matrix of eigenvalues
Mathematics: applications and interpretation formula booklet
4
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