Question

Oblicz :

a)3⁻¹ 5⁻² 2⁻³

b)(7/11)⁻¹ (⅓)⁻² (¾)⁻²

c)(2,5)⁻¹ (0,4)⁻² (1,25)⁻¹

d)(-10)⁻⁵ (-4)⁻² (-2)⁻³

e)(-⅔)⁻² (⅕)⁻³ (-3⅓)⁻⁴

f)(-1,2)⁻¹ (-0,1)⁻⁵ (-0,02)⁻⁴

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Answer 1

a)3⁻¹=(⅓)¹=⅓

 5⁻²= (⅕)²=1/25

  2⁻³=(½)³=1/8

b)(7/11)⁻¹=(11/7)¹=11/7

(⅓)⁻²  =  (3)²=9

(¾)⁻²=(4/3)²=16/9

c)(2,5)⁻¹= (⅖)¹=2/5=0,4

(0,4)⁻²=(5/2)²=25/4

(1,25)⁻¹=(⅘)1=4/5

d)(-10)⁻⁵ =(-1/10)⁵=-1/100000

(-4)⁻² = (-¼)²=1/16  

(-2)⁻³=(-½)³=-1/27

e)(-⅔)⁻² =(-3/2)²=9/4    

(⅕)⁻³=5³=125     

(-3⅓)⁻⁴=(-3/10)⁴=81/10000

f)(-1,2)⁻¹=(-5/6)¹=-5/6   

(-0,1)⁻⁵=-10⁵   

(-0,02)⁻⁴=(-100/2)⁴=100000000/16