Question

1) Oblicz

a)



b)



c)



d)

2) Oblicz


a)


b)


c)


d)


3) Oblicz


a)


b)


c)

d)

e)

f)

g)

h)

i)

Proszę Mi Pomoć

Answer 1

a) 36/32*24/27= 4/4*3/3 = 1*1 = 1

b) 72/78 * 53/54 = 4/78*53/3 = 212/234 = 106/117 

c) 12/25 :18/10 = 12/25 * 10/18 = 2/5 * 2/3 = 4/15

d) 48/14 : 40/56 = 48/14 * 56/40 = 6/1 * 4/5 = 24/5 = 4 i 4/5

 

2

a) 3 i3/5 *(-2i2/9) = 18/5 *(- 20/9) = 2/1 * 4/1 =8/1 = 8

b) (-5i1/3) * (-6i3/4) = (-16/3) * (-27/4) = (-4/1 )*(-9/1) = 36/1 = 36

c) 1i3/4 :1i2/5 = 7/4 : 7/5 = 7/4 * 5/7 = 1/4 * 5/1 = 5/4 = 1 i1/4

d) 6 i 2/3:(-4i4/9) = 20/3:(- 40/9) = 20/3 *(-9/40) = 1/1 *(-3/2)= -3/2= -1 i1/2

 

3.

a) 1/2 + 2/3 + 5/6 = 3/6 +4/6 + 5/6 = 12/6 = 2

b) 1i1/2+1/3+2i3/4= 1i6/12+4/12+2i9/12= 3i19/12=4 i 7/12

c) (1i1/2)do2 + (1i3/4 )do2 = (3/2)do2 + (7/4)do2= 9/4 + 49/16=

     = 36/16 + 49/16 = 85/16 = 5 i 5/16

d) 5/12 + 5/18 = 15/36 + 10/36 = 25/36

e) 11/45 - 9/30 = 22/90 - 27/90  = - 5/90 = - 1/18

f) 7 -(-i1/2)do2 = 7 -(5/2)do2= 7-25/4 = 7-6i1/4= 6i4/4-6i1/4=3/4

g) 3/5+4/15-2/25= 45/75+20/75-6/75= 65/75 - 6/75 = 59/75

h)5/12-2/15-3/10 = 25/60-8/60-18/60= 25/60-26/60= - 1/60

i) -(-1/2)do2 -(-1i1/2)do3= -(1/4)-(-3/2)doi3= -1/4-(-81/8= -1/4 + 81/8=

   = -2/8 + 81/8 = 79/8 = 9 i 7/8