1) (1/4) ^2x+2>1/16

2) 4^4x+2<1/64

3) (1/3) ^-4x-2>=1

4) (1/3) ^2x+1<=1/27

5) (1/3) ^3x+2<=1/27

6) 23^x+7/3^x<613^-x

Question

Алгебра

Евсей

25 декабря, 14:50

1) (1/4) ^2x+2>1/16

2) 4^4x+2<1/64

3) (1/3) ^-4x-2>=1

4) (1/3) ^2x+1<=1/27

5) (1/3) ^3x+2<=1/27

6) 23^x+7/3^x<613^-x

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Ответы (1)

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Денисыч · Answer 1

1) 1/4^ (2x+2) >1/4^2; 2x+2 <2; x<0

2) 4^4x+2<4^ (-3) ; 4x+2 < - 3; 4x< - 5 : x< - 1,25.

4) (1/3) ^2x+1 3; x=>1;

3) (1/3) ^-4x-2=>1/3^0; 4x-2 < = 0 : x<=1/2.

5) (1/3) ^3x+2 3; x=> 1/3

1) (1/4) ^2x+2>1/162) 4^4x+2<1/643) (1/3) ^-4x-2>=14) (1/3) ^2x+1<=1/275) (1/3) ^3x+2<=1/276) 2*3^x+7/3^x<61*3^-x

1) (1/4) ^2x+2>1/16

2) 4^4x+2<1/64

3) (1/3) ^-4x-2>=1

4) (1/3) ^2x+1<=1/27

5) (1/3) ^3x+2<=1/27

6) 23^x+7/3^x<613^-x