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  1. Dec 18th, 2003, 01:09 PM #1
    Acidic
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    Todays Maths lesson

    My techer had to throw something together for my class today, for our one hour lesson. See if you get the same answers:
    1. Complex numbers.
    z1=3+i
    z2=2-i <--Edited: now correct
    Find a) z1z2
    b) z1/z2

    2. Calculate x & y as rationals
    53x*25y=1/5
    7[sp]x[/sup]*492y=1

    3. Find x if:
    |x 6| = |2 1 3|
    |x x| |1 2 3|
    |3 1 1|


    4. Find d2y/dx2 if y=1/qubrt(x3+2)

    5. Two dice are rolled. The score is the smaller of the two numbers that appear. If the sumber is the same then the score is that number. What is the probability of getting a score of 3?

    Can't be bothered to write the rest.
    Last edited by Acidic; Dec 18th, 2003 at 07:40 PM.
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