Answers created by Armin Nahar Mim

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• How do you find #int cot^2x*tan^2xdx#?
  
• How do you simplify #(x-2)/(x^2+3x-10)#?
  
• How do you factor the trinomial #x^2+8x+12#?
  
• How do you simplify #(9 + 2sqrt3)(9 - 2sqrt3)#?