02.28.2017. Tuesday
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 Algebra
Polynomials
⦿ Special Binomials
Progressions
⦿ Arithmetic progression
⦿  Geometric progression
Logarithm
⦿ Logarithm
⦿ Changing the base of a logarithm
Exponents
⦿ Powers
Roots
⦿ Roots
Equations
⦿ Quadratic equation
Complex numbers
⦿ Roots of complex numbers


Complex numbers

Roots of complex numbers

z=a+ib | a, b, i=-1
r=a2+b2, tg φ=ba (a0)
z=r·eiφ=r·cos φ+i·sin φ
zk=zn=rn·cos φ+2kπn+i·sin  φ+2kπnk=0,1,2,3,...,n-1