1Find the domain of the function:
Exercise 1 In a square that has side a, by bringing together the middle of the sides,is formed a new square.
Solve the equation Write x+1=t
For the given functions and . a)Show that in [1;+∞[ , f(x)≤g(x).
Find the sum of n first numbers of the string 7,77,777,….
How many numbers has ?
1. Evaluate each of the following expressions using the propeties of logs (and no calculator)