Questions asked by SoySoy4444

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• What is the difference between potential difference and voltage?
  
• How do you solve a simultaneous equation using matrices?
  
• Is ΔH=mCΔT and q=mCΔT the same thing? If so, which is more scientific?
  
• What is the best way to solve problem like these ↓ ? (Limits to infinity)
  
• A step by step procedure on how to graph a quadratic equation with only 1 solution (discriminant is 0) and no real solutions (complex and discriminant is negative) ? Please provide an example equation and solve through it...
  
• The polynomial f(x) = `x^3 + 3x^2 + ax + b` leaves the same remainder when divided by `(x – 2)` as when divided by `(x +1)`. Find the value of `a`?
  
• Find the value of `c` for which the roots of `2x^2-21x+c=0` are in the ratio `1:2`?
  
• The rational function `f(x)=1/(x-2)-x/(x^2+3)` has a unique zero. What is the zero of `f(x)`?
  
• See below (It's about trigonometric functions) Please answer and explain this?
  
• Please help me with this problem?
  
• Determine an equation for the tangent line to the graph of `f(x)=(2x+1)^2+ln(4x-3)` at the point `x=1`?
  
• What is the angle between the graph of `f(x)=2sin(x)-1` and the `x`-axis if the graph of `f` intersects the `x`-axis at `x=pi/6`?
  
• `f(x)=cos(3^x)`. Then `f'(x)=?` Do not use substitution such as `u=3^x`. Use the chain rule twice??
  
• Can you check the follow statements about derivatives?
  
• `lim_(xrarr-3)(x+3)/(4-sqrt(2x+22))` by using L'Hôpital's Rule?