Question

Oblicz ;

Answer 1

a)

4 ⁻²+6⁻¹=(1/4)²+(1/6)¹=1/8+1/6=6/48+8/48=14/48=7/24

 

b)

2⁻³-10⁻²=(1/2)³-(1/10)²=1/8-1/100=100/800-8/800=92/800=23/200

 

c)

6⁻²+9⁻¹=(1/6)²+(1/9)¹=1/36+1/9=1/36+4/36=5/36

 

d)

(2/3)⁻²+(6/5)⁻¹=(3/2)²+5/6=9/4+5/6=27/12+10/12=37/12=3 1/12

 

e)

(1 1/5)⁻²-(1 1/5)⁻²=(6/5)⁻²-(6/5)⁻²=(5/6)²-(5/6)²=25/36-25/36=0