Oblicz:
d) ( x x )
a) 2 x + 4 x - 12 x
b) - 1,5 x +
Wykaż, że podane liczby są liczbami całkowitymi:
b) -
d) ( x x )=
=(3^1/3*3^(3*2/3)*3^(-2))^(-3/4)=
=(3^1/3)=3^(1/3*-3/4)=
=3^(-1/4)=1/(pierw czwartego stopnia z 3)
a) 2 x + 4 x - 12 x =
=2*10/3+4*4-12*1/3=
=20/3+16-4=6i2/3+12=18i2/3
b) - 1,5 x + =
=5-1,5*1000+32=
5-1500+32=-1463
b) - =
(V3-2)(V3-2) 12*V3
=--------------- - ---------- =
(V3+2)(V3-2) V3*V3
3-4V3+4 12*V3
=--------------- - -------- = -9+12V3-12 - (12V3) = -3
-1 3
Pozdrawiam i licze na naj... :-))
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d) ( x x )=
=(3^1/3*3^(3*2/3)*3^(-2))^(-3/4)=
=(3^1/3)=3^(1/3*-3/4)=
=3^(-1/4)=1/(pierw czwartego stopnia z 3)
a) 2 x + 4 x - 12 x =
=2*10/3+4*4-12*1/3=
=20/3+16-4=6i2/3+12=18i2/3
b) - 1,5 x + =
=5-1,5*1000+32=
5-1500+32=-1463
b) - =
(V3-2)(V3-2) 12*V3
=--------------- - ---------- =
(V3+2)(V3-2) V3*V3
3-4V3+4 12*V3
=--------------- - -------- = -9+12V3-12 - (12V3) = -3
-1 3
Pozdrawiam i licze na naj... :-))