summary of video

 Video one:
Do you believe in me???
From the video one, there are one children who are speech and give some questions for audience do you believe in me?he think that we have to believe with our ability. We have to certain that we be able to doing something. If we have a dream, so we must sure that we can to reach our dream. Although the business need, but in the hearts with confidence that we can and can do.


 Video two
Knowing mathematics
“What you know about math?”
In mathematics, we discuses:
 Significant figure
 Matrix
 Trigonometry
 Limit
 Exponent
 Integral = e power x
 Value of phi is 3,145…………
 Ln (x)

 Video three
English Solving Problem
In that video, we have some questions:
1. Let the function f be defined by f(x) equals x plus one. If 2 times f(p) equals twenty, what is value of f(3p)
Answer:
f(x) equals x plus one
2 times f(p) equals twenty
f(p) equals ten
We substitution f(p) and f(x)
f(p) equals p plus one equals ten
So p equals nine.
Because p equals nine, (3p) equals twenty-seven
And the value of f(3p) equals 3p plus one
f(3p) equals twenty-seven plus one
Equals twenty eight
2. In the xy-coordinate plane, the graph of x equals y square minus four intersects line l at (O, p) and (five, t). What is the greatest possible value of the slope of graph
x equals y square minus four
Line l: m equals ytwo minus yone all over xtwo minus xone
Equals t minus p all over five minus 0


 Video four
Properties of logarithms
Log base b of x equals y similar with b to the power of y equals x
Log base ten of x equals log x; log base c of x = ln x (natural logarithms)
Example:
1. Log base ten of one hundred equals x
Ten to the power of x equals one hundred
Ten to the power of two equals one hundred
x equals two
2. Log base two of x equals three
Two to the power of three equals x
Eight equals x
So log base two of eight equals three
3. Log base seven of one forty nine equals x
Seven to the power of x equals one forty nine
Seven to the power of x equals one seven to the power of two
Seven to the power of x equals seven to the power of minus two
X equals minus two

Log base b of M times N equals log base b of M plus log base b of N
Log base b of M over N equals log base b of M minus log base b of N
Log base b of x to the power of n equals n log base b of x

Expend:
Log base three of x square times y plus one in bracket all over z to the power of three
Equals log three of x square times y plus one in bracket minus log three of z to the power of three
Equals log three of x square plus log three of y plus one in bracket minus log three of z to the power of three
Equals two times log three of x plus log three of y plus one in bracket minus three times log three of z


 Video six
English Trigonometry
If we have a right triangle, we can search value of sin, cos, and tan
 Sin alpha equals opposite over hypotenuse
 Cos alpha equals adjust over hypotenuse
 Tan alpha equals opposite over adjust
The other trigomometric ratios are represented as follows:
 Secant (Sec) is one cos
 Cosecant (Cos) is one sin
 Cotangents (Cot) is one tan