# MATH Archive

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## Properties of Logs

1. Evaluate each of the following expressions using the propeties of logs (and no calculator)

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## Për ERLËN

Try to understand the exercise by pictures.Write the inequality as a system.  Read the rest of this entry »

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## How many numbers has 2 to the 100th?

How many numbers has $2^{100}$?

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## The sum of n first numbers of the string 7,77,777,….

Find the sum of  n first numbers of the string  7,77,777,…. Read the rest of this entry »

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## Compare two functions.

For the given functions $f:y=\frac{2x^{2}+5x+3}{2x+1}$  and  $g:y=5x$ . a)Show that in [1;+∞[ , f(x)≤g(x).

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## Solve the equation.

Solve the equation
$\left&space;(&space;x+1&space;\right&space;)^{4}+x^{4}=17$

Write  x+1=t Read the rest of this entry »

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## Quiz. Trigonometry.

1-In the statements below find which is True and which is False Read the rest of this entry »

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## Geometric progression-Exercise

Exercise 1

In a square that has side a, by bringing together the middle of the sides,is formed a new square.

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## Geometric Progression-Exercise 2

The sum of the numbers of an infinite decreasing geometric progression is 8.

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## Function and numerical sequence

1Find the domain of the function: Read the rest of this entry »