Questions asked by Angelina Andrews

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• I was given a math question on matrices where i was asked to multiply a 2x2 matrix by a 3x3 matrix but couldn't come up with an answer. It's confusing, a little help here please. Or should i just say its undefine??
  
• How can i use an inverse matrix to solve this equation? -x + y= 4, -2x + y = 0
  
• When do we know that a limit of a given function exists?
  
• How do we differentiate ?,