Questions asked by Imaan

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• What's the limit of Lim x -> -2 x^3 + 8/ x+2 ? Please help :(
  
• How do we find the limit here? :
  
• Help me! For which values ​​of a is f (x) continuous for all x??
  
• What's the definition amount of : f(x) #sqrt(x+2)/x^3# ?
  
• What's the domain of ?
  
• How is #e^(ipi)= -1# ? and what is #e^(ipi/4)#?
  
• Write the complex number in Cartesian form: #e^((ln4-ipi)/4)# How do I do that?