Good Math softwares, websites: Matlab, Mathematica, Maple, Symbolab, CAS, Wolfram

PEMDAS: Parenthesis, Exponential, Multiplication, Division, Addition, Subtraction

BODMAS: Brackets, Orders (powers and roots), Division and Multiplication, Addition and Subtraction

Identities(Additive, Associative,Multiplicative, Distributive, Commutative, polynomial)

(a+b)^2 = a^2 + 2ab + b^2

(a+b)(c+d) = ac + ad + bc + bd

#Difference of squares

a^2 - b^2 = (a+b)(a-b)

#Sum and Difference of Cubes

a^3 (+-) b^3 = (a (+-) b)(a^2(-+) ab + b^2)

#Quadratic Formula

ax^2 + bx + c = 0 then x = ( -b (+-)sqrt(b^2 - 4ac) ) / 2a

------------------------------

########Mensuration########

pi = 3.141

#Circle

Circumference = 2Pi r

Area = Pi r^2

Length of arc

= theta (in degree) (Pi/180) r

= theta (in radian) r

Area of Sector:

= (theta/360) Pi r^2

=((theta/(2Pi)) Pi r^2

#Surface Area formulae

Cube = 6a^2

Cylinder = 2pi r^2 + 2pi rh

Sphere = 4 pi r^2

#Volume formulae

cube = a^3

rectangular prism = abc

cylinder = pi r^2h

cone = (1/3)pi r^2h

sphere = (4/3) pi r^3

########Trigonometry########

sin(q) = opposite / hypotenuse = p/h

cos(q) = base / hypotenuse = b/h

sin(90°) = 1

cos(90°) = 0

PEMDAS: Parenthesis, Exponential, Multiplication, Division, Addition, Subtraction

BODMAS: Brackets, Orders (powers and roots), Division and Multiplication, Addition and Subtraction

Identities(Additive, Associative,Multiplicative, Distributive, Commutative, polynomial)

(a+b)^2 = a^2 + 2ab + b^2

(a+b)(c+d) = ac + ad + bc + bd

#Difference of squares

a^2 - b^2 = (a+b)(a-b)

#Sum and Difference of Cubes

a^3 (+-) b^3 = (a (+-) b)(a^2(-+) ab + b^2)

#Quadratic Formula

ax^2 + bx + c = 0 then x = ( -b (+-)sqrt(b^2 - 4ac) ) / 2a

------------------------------

########Mensuration########

pi = 3.141

#Circle

Circumference = 2Pi r

Area = Pi r^2

Length of arc

= theta (in degree) (Pi/180) r

= theta (in radian) r

Area of Sector:

= (theta/360) Pi r^2

=((theta/(2Pi)) Pi r^2

#Surface Area formulae

Cube = 6a^2

Cylinder = 2pi r^2 + 2pi rh

Sphere = 4 pi r^2

#Volume formulae

cube = a^3

rectangular prism = abc

cylinder = pi r^2h

cone = (1/3)pi r^2h

sphere = (4/3) pi r^3

########Trigonometry########

sin(q) = opposite / hypotenuse = p/h

cos(q) = base / hypotenuse = b/h

sin(90°) = 1

cos(90°) = 0

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