Questions asked by Muskan :)

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• What is the integration of #sec^2 x cos^2 (2x) dx#?
  
• Integration of 1+tanx/x+log(sec(x))?
  
• Integration of : #intdx/(3sinx-4cosx)^2# ?
  
• Integration of : #int(-1/2x+1/2)/(x^2 +1)dx# ?
  
• Integration of: #intdx/{(sinx+1)(3+sinx)}# ?
  
• An object has an excess charge of -1.92*10^-7 C . How many excess electrons does it have?
  
• Integration of : #int(cosx-cos2x)/(1-cosx) dx# ?
  
• Integration of:#int(sin^8x +cos^8x)/(sin^2xcos^2x) dx# ?