Answers created by Ada C.

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• What is the derivative of `1/sqrt(1 - x^2)`?
  
• How do you find the limit of `(x^2 - 4x + 5)` as x approaches `2`?
  
• How do you find the derivative of `root6(x^5)`?
  
• How do you differentiate `f(x)=cot(e^sqrt(x^2-1))` using the chain rule?
  
• How do you solve `1/2(x-(75-x))=5`?
  
• How do you solve `\frac { 4} { 5} ( 10x + 5) - 2= \frac { 3} { 4} ( 8x + 8) + 0`?
  
• How do you solve the following system?: `4x-y=-1 , 6x+5y=18`
  
• Factorise. `ax+bx=`? `3x*2+6x*6=`?
  
• P(B)= 9/20 P(A and B)= 9/100 P(A)=?
  
• How do you write 0.000419 in scientific notation?
  
• What’s the result of (1/27)^-1/3 after it’s simplified?
  
• How do you simplify `-(7x-2)`?
  
• Can someone help me with this problem?
  
• What is `sqrt((-9)^2)`?
  
• How do you solve for z: in `x=y-z/5`?