Pre calculus formula sheet, Cheat Sheet of Calculus

Formulas are given right triangle, law of sin and law of cosine, heron's formula, parabolas, ellipses, arithmetic and geometric sequences.

Typology: Cheat Sheet

2021/2022

Uploaded on 02/07/2022

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Precalculus Formulas
3 1 2 2 1 3
, ; , ; ,
6 2 2 4 2 2 3 2 2
P P P
2 2 2 2 2 2
sin cos 1; ta n 1 sec ; 1 c o t csc
cos cos co s si n s i nu v u v u v
si n sin cos co s s inu v u v u v
ta n ta n ta n
1 t a n ta n
u v u v
uv
22
2
22
sin 2 2 sin c os co s 2 co s sin
ta n 2 2 ta n 1 2 s in
1 t a n 2 co s 1

1 cos 1 co s
sin c o s
2 2 2 2

Right Triangle:
O p po sit e A d ja ce n t O p po sit e
sin co s ta n
H y po te nu se H y po te nu se A d ja ce n t
Law of Sines:
Law of Cosines:
2 2 2 2 c o sc a b a b C
or
2 2 2
co s 2
a b c
Cab

Heron’s Formula:
K s s a s b s c
pf2

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Precalculus Formulas

P P P

   ^ ^    ^ ^    ^ 

  ^ ^ ^   ^ ^ ^  ^ 

2 2 2 2 2 2

s in  c o s   1; ta n  1  s e c ; 1  c o t  c s c 

c o s  u  v c o s u c o s v s in u s in v

s in  u  v  s in u c o s v c o s u s in v

ta n (^)   ta n ta n

1 ta n ta n

u v u v

u v

2 2

2

2 2

s in 2 2 s in c o s c o s 2 c o s s in

ta n 2 2 ta n 1 2 s in

1 ta n 2 c o s 1

1 c o s 1 c o s s in c o s 2 2 2 2

Right Triangle:

O p p o s ite A d ja c e n t O p p o s ite s in c o s ta n H y p o te n u s e H y p o te n u s e A d ja c e n t

Law of Sines:

s in A s in B s in C

a b c

Law of Cosines:

2 2 2 cab  2 a b c o s C

or

2 2 2 c o s 2

a b c C a b

Heron’s Formula:

Ks (^)  sa (^)   sb (^)   sc

Parabolas:

2 2 y   4 p x o r x   4 p y

Ellipses: Horizontal:

2 2 2 2

2 2 1;^ V e r tic a l^2

x y x y

a b b a

2 2 2 ab  0 , bac

Hyperbolas: Horizontal transverse axis; Vertical transverse axis

2 2

2 2 1

x y

a b

2 2

2 2 1

y x

a b

2 2 2 bca

Arithmetic Sequence Geometric Sequence

a 1 (^) , a (^) 2 , a 3 , a 1 (^) , a (^) 2 , a 3 ,

a n  a 1   n  1  d

1 1

n a (^) n a r

 

1 2

n n

a a S n

1 ^1 

n

n

a r S r r

(^1) if 1 1

a s r r

n (^) n

r r n r

  ^ 

Binomial Theorem:  

0

n n (^) n r r

r

n x y x y r