plz help me.f.1 math'唔識做

1) add 3 to x -----> 3 + x
then multiply the sum <------ what is this "sum" means?
and then, if you know what the "sum" means, multiply it by 6, ie: ( ) X 6
Got it?

2) For this question, because of the limitation of txt format, I can only guess your question as: the numerator is (axb - c), the denominator is (3xb)
so the answer is A
or if the numerator is (axb -c) the denominator is only 3, and then the whole number multiply by b, then the answer is C

3) Fibonacci number: is a number list (sequence) the first number and second number are 1, ie: 1, 1
then the next is the sum of previous two, ie: 1+1= 2
ie: 1, 1, 2
then the next is olso the sum of previous two, ie: 1 + 2 = 3
ie: 1, 1, 2, 3, ....and so on.
so can you construct the list? Try it.






( 1, 1, 2, 3, 5, 8, 13, 21, 34, ........)

1. B
2. B
3. B

1.B
2.A,D (two is same??)
3.B
Fibonacci number =
a number in an unending Fibonacci sequence
after √ the munber in unending (√4=2 so it is not a Fibonacci number)

2007-07-22 00:01:28 補充：
2.b is incorrect let (axb-c) =z z÷3b≠3z÷b

1B
2B
3B
Fibonacci Number Series在數學上是以遞歸的方法來定義,每個數字是由之前的兩數相加,其數學表達式是:Fn = Fn - 1 + Fn - 2
例如:1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181, 6765, 10946........直至無窮無盡.

2007-07-21 23:50:43 補充：
費波那契數(上面)如果冇錯ga話應該係以上呢D答案...

2007-07-22 00:13:30 補充：
I'M SORRY...Q2 IS WRONG~SOR~I'M NOT SURE Q2'S ANSWER....SORRY~