Answer:
1. Yo me levanté a las siete.
2. Ella se maquilló en el espejo.
3. Los hombres se afeitan sus caras.
<span>Hi, my name is Jorge and (1) from cuba. pillar and nati (2) of Spanish. pedro, juan and paco (3) of Mexico. all of us (4) students. the holy blasco (5) of san antonio. she (6) the teacher. luis (7) the driver. He (8) of puerto rico. they (9) of the United States. the bus (10) of the Marazul agency. all of us (11) passengers from the marazul travel agency. pardon, where (12) who, who (13) she and who (14) the suitcases?</span>
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:
Te preguntamos Isabela y Sara visitan la playa
