Soal Dan Pembahasan Logaritma SMU

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Logaritma, Logaritma adalah operasi matematika yang merupakan kebalikan dari eksponen atau pemangkatan. Rumus dasar logaritma.

bc= a ditulis sebagai blog a = c (b disebut basis)
Beberapa orang menuliskan blog a = c sebagai logba = c.

Rumus

* xlog x = 1
* x^nlog xm = m/n
* blog x + blog y = blog (x.y)
* blog x - blog y = blog (x:y)
* (alog b)(blog c) = alog c
* b log xn = n.blog x
* b log x = klog x : klog b

Kegunaan logaritma
Logaritma sering digunakan untuk memecahkan persamaan yang pangkatnya tidak diketahui. Turunannya mudah dicari dan karena itu logaritma sering digunakan sebagai solusi dari integral. Dalam persamaan bn = x, b dapat dicari dengan pengakaran, n dengan logaritma, danx dengan fungsi eksponensial.

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Prince Charles Car Affected Shots

In the middle of his trip to watch the Royal Variety Performance at the London Palladium, their car into the crowd easy target for demonstrators - protesting the cost of education.

Prince Charles car was ambushed, kicked, and beaten. A demonstrator using face coverings, even, desperate to paint bullets fired into the car.

Luckily they saved lives and did not experience the slightest injury. Some people are very concerned and condemn this incident. However, many people question the security system of the police against the royal family, let alone last week failed to save police headquarters tory party. This is a security breach terbutuk British empire in one generation.

Mercedes-Benz Develops Safety Lights

Now, the MB has a new technology called Active Night View Assist Plus (ANVAP), a device that directs light headlights to pedestrians in or along the path, thus making them more visible from a distance drivers.

ANVAP system uses infrared light and night vision camera (night vision camera). Infrared headlamps illuminate the road ahead that can not be seen with the human eye. The camera then captures and displays images on an instrument.

The system highlights the possible source of danger gives an interesting side effect, the pedestrians know that there is a car that approached him, so they are more aware or step aside. The system will not work when there are cars coming the opposite so as not to create glare against the driver.

"This development objective is to prevent collisions with pedestrians at night. With this concept, Mercedes-Benz not only protect the driver, but also make a significant contribution to improving safety for other road users, "explained Dr. Thomas Weber, Member of the Board of Management Responsible for Group Research and Head of Development, Mercedes-Benz Cars ..

All Mercedes-Benz will be provided ANVAP from the summer of 2011.

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