Questions asked by Bacho K.

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• Simplify sin^2b/1+cosb=?
  
• Simplify ? # (cos^2a - sin^2b)/(sin^2a • sin^2b) - ctg^2a • ctg^2b #
  
• How do i simplify this ? # (tga + tgb)/(ctga + ctgb) #
  
• How i prove this ?
  
• How i prove this ?
  
• How i prove this ?
  
• How do u prove this ?
  
• How do u prove this ?
  
• How do you sipmify this ?
  
• How do you simplify this ?
  
• How do you slove this ?