Questions asked by YKk

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• #F(z)= z^2 - z -2# how describe it and write a essay about it? Need to relate what?
  
• Is there a empty function? it means that there is no line on the graph
  
• Give the function based on the given domain?
  
• Is ∅ ∈ {∅, {∅}}?
  
• Let A and B are the set of real numbers, and x !in B means x ∈ B' . Is A − B = A ∪ B'?
  
• A product has a fixed cost of $1650 and a variable cost of $35 for each item produced during a given month. a)write the equation that repesents total cost b)what will it cost to produce 215 items during the month?
  
• A traveler just returned from Europe spent $30 a day for housing in England, $20 a day in France and $20 a day in Spain. For food, the traveler spent $10 a day in each country for incidental expenses?
  
• May I know how to solve it? urgent...thank you
  
• May I know the examples of daily life that related to functions, limits, differentiation and integration? thank you
  
• May i know holve to solve? Thank you
  
• Is that any examples that can combine function, limit, differentiation and integration into one?
  
• May I know how to solve it?
  
• Find #int_4^5f(5x+2) dx# if #int_22^27f(x)dx# ?
  
• What is moment generating function?
  
• May I know how to solve it?? Thank you
  
• May I know how to prove the series below converges?Thank you
  
• How to prove that the series is converge?
  
• How to find the sum of this series?