Answers edited by Truong-Son N.

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• What is the derivative of #2( sinx) #?
  
• What is the antiderivative of #cos^2x#?
  
• Why is a #"C"="N"# double bond shorter than a #"C"="C"# double bond?
  
• How do you differentiate #5cos (2x)+ tan(3x+4)#?
  
• How do you solve for #q#? #4log_p 3 + 2 log_p 2 - log_q 144 = 2#
  
• How do you differentiate #f(x) = sec(tan(sec(tan(x))))#?
  
• How do you simplify #r^2 - t^0?
  
• What is the derivative of #arctan sqrt [ (1-x)/(1+x)]#?
  
• How would I take the derivative of #x^2ln(sin4x)#?
  
• How can I calculate the rates and order in the following reaction? #H_2 + Br_2 -> 2HBr#
  
• What is the derivative of #(3x - sinx)/cosx#?
  
• How do you integrate #2ln(x-5)#?
  
• How do you find intervals where the graph of #f(x) = x + 1/x# is concave up and concave down?
  
• How do you integrate #int [xsqrt(x^2 + 1)] dx #?
  
• Explain the dissociation of a triprotic acid?
  
• What is the limit for the following?
  
• How do you integrate #x^2/sqrt(9-x^2) dx#?
  
• How do you factor #9xy^2 - 25#?
  
• How to you integrate #(x^2)/(x^2 -4) ^(1/2)#?
  
• How do you find the derivative of #x/(1+x^2)#?
  
• How can I remove solid from a supersaturated solution?
  
• How do you differentiate #y = (1 + cos^2x) / (1 - cos^2x)#?
  
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