Let A=ia1 + ja2 + ka3
B= ib1 +jb2 =kb3 and
C=ic1 + jc2 +kc3
B.C =b1c1 + b2c2 +b3c3 is a scaler and so
A.(B.C) = (b1c1 + b2c2 +b3c3)(ia1 +ja2 +ka3)
A.(B.C) = ia1b1c1 +ja2b2c2 +ka3b3c3 . . . . . . . . . . .(1)
A.B = a1b1 + a2b2 +a3c3 is a scaler and
(A.B).C = (a1b1 + a2b2 +a3c3)(ic1 + jc2 +kc3)
(A.B).C = ia1b1c1 + ja2b2c2 + ka3b3c3 . . . . . . . . . . (2)
RHS’s of (1) and (2) are identical and so
the LHS’s should be equal and hence it follows that
A.(B.C) = (A.B).C
Answer:
Me siento
Explanation:
Me siento enfermo hoy. Hope this helps! (:
Actually the correct answer is D. tendrá. Because A would be if you were talking about yourself. B would be if you were taking about a group including yourself, and C would be right if you were talking about a group not including yourself.
Answer:
1.comiste
2.escribimos
3.subió
4.abrió
5.salió
6.recibí
7.perdió
8.vimos
9.conocen
10.corre
11.volverán o volvieron
12.asistirán
13.entiende o entendió
14.prometieron
15escogiste
16.envolvió
17.permití
18.resolvió
19.sorprendió
20.aprenden o aprendieron
Answer:
start with saying easy word then repeat it or just watch yt videos that speak spanish thats how i learned english
Explanation:
