Question

Помогите с математикой, Решите ПРЕДЕЛЫ!

Answer 1

Решение
 
=    limx---->7 [(x - 7)(x + 7)] / ( x - 7)  =  limx---->7 (x + 7) = (7 + 7 ) = 14
2)    
=  limx----->2 [(x² - 5x + 6)/(x - 2) = =  limx----->2 [(x - 2)(x - 3)] /(x - 2) =
=  limx----->2  (x - 3) = (2 - 3) = - 1
3)   = 
= limx--->∞ (x³/x⁴ + 4x⁴/x⁴) /([2/x⁴ + x⁴/x) =
= limx------( [1/x + 4) /(2/x⁴ + ) = (0 + 4)/(0 + 1) = 4/1 = 4