Answers edited by Ahmed A.

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• Question #a3f3d
  
• Sin^2(x)= 1/2 ? i need help solving this
  
• How do you find the exact value of #tan^-1(1)#?
  
• How do you differentiate #3(x^2-2)^4#?
  
• How do you find the x and y intercepts for #y=3/5x-9#?