Question

Oblicz:

a) (-3)^3

b) 100^4

c) 7^2

d)(-3/4)^4

e) (-1/5)^3

f) (-1 1/2)^5

g) (0,001)^2

h) (-2,5)^3

i) (-42,391)^0

Zad. 14

a) (-7)^2 + (-1)^2

b) (-6 - 4)^2 - 2^2

c) (6 - 10 + 12)^2 - (-4 +5)^3

d) (-1/2)^2 - (4/5)^0

Answer 1

a) (-3)^3 = (-3) x (-3) x (-3) = - 27

b) 100^4 = 100 x 100 x 100 x 100 = 1 000 000

c) 7^2 = 7 x 7 = 49

d)(-3/4)^4 = (-3)^4 / 4^4 = 81/256

e) (-1/5)^3 (-1/5) x (-1/5) x (-1/5) = - 1/125

f) (-1 1/2)^5 = (-3/2)^5 = (-3)^5 / 2^5 = - 243/32 = - 7 i 19/32

g) (0,001)^2 = 0,001 x 0,001 = 0,000001

h) (-2,5)^3 = (-2,5) x (-2,5) x (-2,5) = - 15,625

i) (-42,391)^0 = 1

 

Zad. 14

 

a) (-7)^2 + (-1)^2 = 49 + 1 = 50

b) (-6 - 4)^2 - 2^2 = (-10)^2 - 4 = 100 - 4 = 96

c) (6 - 10 + 12)^2 - (-4 +5)^3 = 8^2 - 1^3 = 64 - 1 = 63

d) (-1/2)^2 - (4/5)^0 = 1/4 - 1 = - 3/4