Question

288. Решите уравнение: 1) |m|+3=12; 2)|n|-6=10,3; 3) 6|y|+0,7=4,3; 4)2,6|y|-4,6=3,2; 5)|m|•5/9-1 1/3=2; 6)3,4|n|+0,45=3.

Answer 1

1) Iml + 3 = 12

Iml=9 m=+-9

2) |n| - 6 = 10.3 |n| = 16.3

n = - 16.3

3) n| - 5 = 3|m|

3lml-Iml=-5 2lml=-5

|m| = - 2.5

решений нет, т.к. Iml>=0

4) 0.5|m| - 4 = |m| 5ml-Iml=4

4lml=4

Iml=1

m = - 1 5) Inl + 1/4 = 2

Inl=1 3/4

n=+-1 3/4

6) Inl- 0.5 = 4 * ln(l)

4Inl-Inl=-0,5

3|nl=-0,5 Inl=-1/6

решений нет, т.к. |n|>=0