Answers edited by kumail

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• What is a black hole?
  
• How fast is expansion of the universe?
  
• How do you solve #v^ { 2} + 34v = 0#?
  
• If #y = sin^4x -cos^4x#, what is #dy/dx#?
  
• In a box of 24 iPods, 3 are defective. If 3 are sold, find the probability that all are defective. Would you consider this event likely or unlikely to occur?
  
• How do you evaluate # [ ( ln x ) / (x^2 + x - 2 )]# as x approaches 1?
  
• What is the 15th prime number, if they are listed in order?
  
• Question #29ff4
  
• Question #7ff63
  
• How do you differentiate #f(t)=1/4(t^4+8)#?
  
• Question #edbb3