Answers edited by Rafael

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• How do you find the domain and range of `f(x) = x / (3x(x-1))`?
  
• How do you prove `(sin+cos)(tan+cot)=sec+csc`?
  
• How do you solve `x-(3/x) = -2`?
  
• How do you determine the constant of variation for the direct variation given `y = 8x`?
  
• Question #d94de
  
• Two corners of an isosceles triangle are at `(2 ,5 )` and `(9 ,8 )`. If the triangle's area is `12`, what are the lengths of the triangle's sides?
  
• How do you graph and find the discontinuities of `F(x) = (-2x^2 + 1)/(2x^3 + 4x^2)`?
  
• How do you solve `9 cos^3 x − 63 cos^2 x + cos x − 7 = 0`?
  
• If Vector B is added to Vector A , the result is 8.8 i +4.8 j. If Vector B is subtracted from Vector A, the result is -5.6 i + 6.8 j . What is the magnitude of vector A ?
  
• How do you use synthetic division to divide `(x^4 + 2x^3 - 2x - 1) ÷ (x^3 + 3x^2 + 3x + 1)`?
  
• How do you identify the important parts of `x^2-2x-8=0` to graph it?
  
• How do you find the inverse of `f(x) = 6x - 4`?
  
• How do you solve the identity `cos3x = 4cos^3x - 3cosx`?
  
• How do you solve `7=5e^(0.2x)`?
  
• How do you write an equation of the quadratic function whose graph contains the points (-4,-57), (2, 39), (5, 168)?
  
• What is the equation of the line with slope `m= 1/3` that passes through `(-7/15,-5/24)`?
  
• How do you simplify 5 square root 10 times 2 square root 8?
  
• How do you simplify `cot(x) *sec(x)`?
  
• How do you solve `3sinx + 2 = 0` from 0 to 2pi?
  
• How do you express the phrase "a number z divided by 19" as an algebraic expression?