Odpowiedzi

2009-10-25T10:20:23+01:00
Oblicz:
a)I4√10I+I2√10 - 4I=
=4√10+2√10 - 4=
=6√10-4
b)I1-√3I - 3I2-2√3I + 5I√3 - 2I
=-1+√3 - 6 + 6√3 -5√3 +10=
=2√3+3
c)I5-√5I - I√3 - 5I=
=5-√5 - (-√3 + 5)=
=5-√5 +√3 - 5=
=-√5 +√3
d)1+ 1/2 I2-5√2I - I2,5√2 - 5I=
=1+ 1/2 (-2+5√2) - (-2,5√2 +5)=
=1-1+2,5√2 +2,5√2 -5=
=5√2-5