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    HSC Private Tuition Services available

    Cheap Preliminary and HSC Private Tuition Services (Girraween graduate) Hi, If anyone is looking for Preliminary or HSC one-to-one tuition in Maths (2U, 3U or 4U), English Advanced, Physics or Economics, please contact me ASAP: Mobile: 0424 576 290 Email: ronojoy.raychaudhuri@gmail.com...
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    Doing HSC in pencil?

    Is there any penalty for doing a HSC maths exam in pencil?
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    ATAR estimate please?

    School Ranks: English Advanced: 79/135 3 Unit Maths: 43/101 4 Unit Maths: 17/56 Physics: 12/61 Economics: 6/38 Software Design: 5/11
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    Complex No.'s Question

    Resolve z^4 + 1 = 0 into real quadratic factors and deduce that: cos2x = 2(cosx - cos(x/4)) (cosx - cos(3x/4))
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    Complex Numbers Help

    Prove the following: (1 - cosx + 2isinx)^-1 = (1 - 2icot(x/2))/(5 + 3cosx) Thanks!!
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