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  1. U

    Creative writing

    Hey my assessments tomorrow, any tips or ideas
  2. U

    Double angles : 2 questions

    1) Simplify: 2 (cos^2 3x) - 1 2) Prove following identities: Sin A + Cos A Tan B =Tan (A+B) _________________ Cos A - Sin A Tan B Cheers if you can help
  3. U

    Need Help !

    Hey have no clue how to do this, please help: Simplify: sqrt(x*3) + sqrt(x) - 4sqrt(x)
  4. U

    Physics year 11

    Hey i was wondering if anyone could help me with this physics question: A battery operated toy car of mass 0.5kg is moving at 5m/s before its speed is increased to 7m/s. What is the amount of work done by the toy's engine to increase its speed? Cheers
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