Question

PIERWIASTKI. Oblicz.

a)

b)

c)

Answer 1

a)

(1/3)⁻²-(-3/7)°*36*(√16)⁻¹ = 3²-1*36*4⁻¹ = 9-1*36*1/4 = 9-36/4 = 9-9=0

 

b)

1/2⁻¹+(1/5)⁻¹+(1/27)⁻¹:(1/3)⁻²

___________________________ =

       3*(√2/3)⁻²+(2/9)⁻¹+(-3)⁰

 

       2+5+27:9

_________________ =

3*(1/ √2/3)²+9/2+1

 

           7+3

_______________ =

3*(1/ 2/3)+9/2+1

 

        10

___________ =

3*3/2+9/2+1

 

      10

_________ =10/10= 1

9/2+9/2+1

 

c)

√19 i 3/5:√0,064:√0,16 * ∛20 i 1/4:∛108:∛0,125=

√98/5:√0,064:√0,16 * ∛80/4:∛108:∛0,125=

√98/5: √0,064:0,4  * ∛80/4: ∛108:0,5=

√98/5: √0,16  *  ∛80/4: ∛216=

√98/5:0,4  *  ∛80/4: 6=

√49  *  ∛80/24=

7*∛8/8*10/3=

7* 2/2∛10/3=

7 ∛3 całe i 1/3