Question

resolva em R as inequacoes

Answer 1

(1/3)^x+3 >   (1/3)^2x

x + 3 > 2x  ==> x -2x > - 3 ==> - x > - 3(-1) ++> x < 1

(V2)^x > 1 ==> (V2)^x >(V2)^0 ==> x > 0


(7)^x^2 + 1 > 49

7^x^2 + 1 > 7^2
  x^2 + 1 > 2
    x^2 > 2 - 1
    x^2 > 1   ==>   -1  < x  < 1


(1/2)^x > 1/4

(1/2)^x > (1/2)^2
     
     x > 2