Maths Formulas and uses

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  • Maths Formulas & uses
    • speed= distance / time
      • Therefore: time= distance/speed & distance = speed * time
      • This means that on any question where they ask you for speed you need to identify those items
      • The unit for speed is m/s, distance is m, and time is s
    • The Quadratic Formula
      • needs to be in the form ax2+bx+c= 0 to be applied
      • if there is no ax2 then it is not a quadratic, it is linear
    • The Sine Rule
      • Used when you have 2 angles and 1 side, or 2 sides and 1 angle
      • USED IN TRIANGLES
      • a/sinA =b/sinB
    • The Cosine Rule
      • USED IN TRIANGLES
      • a2=b2+c2- 2bccosA

Comments

daviesg

A good starting point for formulae, not quite finished though.  Use 'alt 253' to wite the power 2.

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