ćwiczenie 5 str 16.Oblicz.
a)-2i1/3*(-27/28)
b)-3i3/8:5i1/16
c)-1i1/7*1i11/24:3/5
d)3i1/2-3i1/6:(-2i1/9)
a)-2i1/3*(-27/28) = -7/3 * (-27/28) = -1/3 * (-27/4) = 27/12 = 9/4 = 2 i 1/4
b)-3i3/8:5i1/16 = -27/8: 81/16 = -27/8 * 16/81 = -1/8 * 16/3 = -2/3
c)-1i1/7*1i11/24:3/5 = -8/7 * 35/24 * 5/3 = -25/9 = -2 i 7/9
d)3i1/2-3i1/6:(-2i1/9) = 7/2 - 19/6 : (-19/9) = 7/2 - 19/6 * (-9/19) = 7/2 - (-3/2) = 7/2 + 3/2 = 10/2 = 5
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a)-2i1/3*(-27/28) = -7/3 * (-27/28) = -1/3 * (-27/4) = 27/12 = 9/4 = 2 i 1/4
b)-3i3/8:5i1/16 = -27/8: 81/16 = -27/8 * 16/81 = -1/8 * 16/3 = -2/3
c)-1i1/7*1i11/24:3/5 = -8/7 * 35/24 * 5/3 = -25/9 = -2 i 7/9
d)3i1/2-3i1/6:(-2i1/9) = 7/2 - 19/6 : (-19/9) = 7/2 - 19/6 * (-9/19) = 7/2 - (-3/2) = 7/2 + 3/2 = 10/2 = 5