Question

2. Oblicz. (NAPISZ OBLICZENIA !!!)

a) 3 i 1/3+(-4,8) =

b) -2,8+(-11 i 1/4) =

c) 2/3 * 3/2 =

f) -(-7)(do potęgi 2) + 7 =

Porównaj liczby a i b, jeżeli : (NAPISZ OBLICZENIA !!!)

a = (3 i 2/5 - 5,4) * (3 i 1/4 + 2,75)

b = (2 i 2/9 - 4 i 1/3) : 3 i 1/6

Answer 1

a)3i1/3+(-4,8)=10/3-48/10=100/30-144/30=-44/30=-1i14/30=-1i7/15

b)-2,8+(-11i1/4)=-2i8/10-11i1/4=-2i16/20-11i5/20=-13i21/20=-14i1/20

c)2/3*3/2=6/6=1

f)-(-7)^+7=-49+7=-42

 

a=(3i2/5-5,4)*(3i1/4+2,75)=(3i4/10-5i4/10)*(3i1/4+2i3/4)=(-2)*6=-12

b=(2i2/9-4i1/3):3i1/6=(2i4/18-4i6/18):19/6=-2i2/18:19/6=-2i1/9:19/6=

-19/9*6/19=-6/9=-2/3

liczba a>b

Answer 2

2.a

 

2.b

 

2.c

 

2.f

 

 

 

 

b>a