Kamis, 09 April 2009

Reflection of Video

Reflection of Video



Video 1 : Dead Poets Society
If you look something, you must think from the different way. From this, you can find the solution about your problem. The change is you. You can choose your way and your think. You can choose what you want and how to get it.

Video 2 : Believed
We must believe in our self. We must believe that we can do anything, dream anything and get anything. We can get what we want if we believe in our self. Believe is very important in our life. From that, we can get motivation to do anything and power to do it.

Video 3 :
What you know about math?
Math is about significant figure. The examples are trigonometry, exponent, geometry, algebra etc. math is also about equation like plus, minus, over and times.

Video 4 : Types Differential Equation
To solve differential equation is like integrate in calculus.
To find y = f(x)
We must usually get dependent y

Video 5 :

1. x – 5 = 3
To solve this problem, we can plus x – 5 with 5 and plus 3 with 5 too. So we can get that x is 3 plus 5 equals 8.
2. 7 = 4a – 1
To solve this problem, we can plus 7 with 1 and plus 4a – 1 with 1 too. From this, we can get that 4a equals 8. To get the value of a, we can times 4a with 1/4 and times 8 with 1/4 too. So, we can get that the value of a is 2.
3. 2/3x = 8
To solve this problem, we can times 2/3 x with 3/2 and times 8 with 3/2 too. From this, we can find that the value of x is 8 times 3/2 equals 12.
4. 5 – 2x = 3x + 1
To solve this problem, we must eliminate 3x. To do that, we can plus 3x + 1 with -3x and plus 5 – 2x with 3x too. We can get that 5 – 5x = 1. After this, we eliminate 5. To do that, we can plus 5 – 5x with -5 and plus 1 with -5 too. We can get that -5x = -4. To get the value of x, we can over -4 with -5. So, we can find that the value of x is 4/5.
5. 3 – 5(2m – 5) = 2
To solve this problem, we must times 5(2m – 5) first. From this we can get that
3 – 10m + 25 = -2
-10m + 28 =
-10m = -30
To get the value of m, we can over -30 with -10. So we can get that the value of m is 3.
6x + 3 = 4x + 15
6x – 4x = 15
2x = 12
To get the value of x, we can over 12 with 2. So, we can get that the value of x is 6.
6. 0,35x – 0,7 = 0,15x + 0,1
To solve this question, we must times 0,35x – 0,7 with 100 and times 0,15x + 0,1 with 100 too. We can get
35x – 70 = 15x + 10
35x – 15x = 10 + 70
20x = 80
To get the value of x, we can over 80 with 20. So, we can get that the value of x is 4.

Video 6 :
In video 6, there are a formula about logarithm and the law about log
• The formula is :
Based a log b equals c is a based c equals b
• The law about log are :
1. log A + log B = log (AB)
2. logA – log B = log (A/B)

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