Question

Решите двойное неравенство

Answer 1

а) -2 <= 1-2x <= 2

-3 <= -2x <= 1

-0,5 <= x <= 1,5

б)  -1 <= (6-2x)/4 <= 0

-4 <= 6-2x <= 0

-10 <= -2x <= -6

3 <= x <= 5

в) -5 < 3-4x <= 3

-8 < -4x <= 0

-0,75 <= x < 2

г) -3 < (5x+2)/2 < 1

-6 < 5x+2 < 2

-8 < 5x < 0

-1,6 < x < 0