(1/4)^x-4(1/2)^x>-4 Математика

Question

(1/4)^x-4(1/2)^x>-4
Математика

Answer 1

(1/2)^2x-4*(1/2)^x>-4
(1/2^x)*((1/2^x)-4)>-4
(1/2)^x>-4     ⇒2^-x>-2²    
(1/2)^x-4>-4  ⇒(1/2)^x>0  

и так продолжайте