Question

A)2⁻³=

b) 6⁻²=

c) (2/7)⁻¹=

d) 0,25⁻¹+(2/3)⁻¹=

e) (2/5)⁻²+(1 1/3)⁻¹

f) (3/√4)⁻²+(1/√2)⁻⁴=

Answer 1

A)2⁻³= 1/2³ = 1/27b)
6⁻²= 1/6² = 1/36

c)
(2/7)⁻¹= 7/2 = 3 1/2

d)
0,25⁻¹+(2/3)⁻¹= (1/4)^(-1) + 3/2 =
= 4 + 1 1/2 = 5 1/2

e)
(2/5)⁻²+(1 1/3)⁻¹ =
= (5/2)² + (4/3)^(-1) = 25/4 + 3/4 = 28/4 = 7

f)
(3/√4)⁻²+(1/√2)⁻⁴=
= (√4/3)² + (√2)^4 = 4/9 + 4 = 4 4/9