Maths A Level

• If you substitute a coordinate into circle formula you find the?


  Distance between the points
• You can use distance formula to find out for example (10,k)

  you can find out k by doing the distance formula using the length of the line that passes the point
• In Forces: Vectors that are parallel means that A vector has been multiplied by a scale factor of k (unknown) to equal the original magnitude

  
• Example (T-800g): For tension, if the T is first then it is going up and if its (800g-T) then it is going down
• Displacement is distance relative to where it started
• Total distance is only the same as displacement if the direction hasn't changed.

  
• You can use the completing the square to find the maximum/minimum point of a quadratic