Questions asked by Sofia P.

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• How do you simplify (2k)!/(2k+2)! to 1/(2(k+1)(2k+1)) ?
  
• What happens here?
  
• Please help me solve this problem. Transform the equation to new variables (u and v). How do you do this?
  
• If you have two ponts, (-2,-4) and (10,6), how do you calculate the line that goes through these ponts in the form of Ax+By=C?