Decide

27-June-2015 Saturday
Help 1. Solve the inequality 2. Solve the equation 3. Solve the equation 4. Find the main coefficient of the tangent 5. Find the area phi

02-November-2014 Sunday
Peek-a-boo mathematicians, please help :) "-1 to the power of infinity" (Comment for minuses inside)

31-December-2013 Tuesday
Don’t solve it the first time. Rzhach in the comments

14-December-2013 Saturday
Asked the child an anagram, we can not decide. Maybe someone here knows?


v20221217