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  1. C

    Help with limiting sum question

    For the GP (root5+root3)+(root5-root3)+....., verify that S(infinity)=Term1 + (root3)/3
  2. C

    Help with math extension 2 question, thanks!

    Let H and K be the points representing the roots of x^2 +2px+q=0, where p and q are real and p^2 <q . Find the algebraic relation satisfied by p and q in each of the following cases (i) angle HOK is a right angle. (ii) A, B, H and K are equidistant from the origin.
  3. C

    Need help with circular motion question

    A jogger of mass 65kg, runs around a circular track of radius 120m with an average speed of 6km/h. 1) What is the centripetal acceleration of the runner? 2) What is the net force acting on the jogger? Thank you!
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