Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) Consider the following statements(a) Line joining (1,2,3), (4,3,2) is parallel to the line joining (5, 1, -11), (8,2,-8)(b) Three concurrent lines with D.C.’s `(l_i, m_i,n_i)`, i=1,2,3 are coplanar if `|[l_1,m_1,n_1],[l_2,m_2,n_2],[l_3,m_3,n_3]|`=0 (c) The plane `x-2y+z=21` and the line `(x-1)/1=(y-2)/2=(z-1)/3` are parallel, which of these is/are correct? - Sarthaks eConnect

Consider the following statements:
(a) Line joining (1,2,3), (4,3,2) is parallel to the line joining (5, 1, -11), (8,2,-8)
(b) Three concurrent lines with D.C.’s `(l_i, m_i,n_i)`, i=1,2,3 are coplanar if `|[l_1,m_1,n_1],[l_2,m_2,n_2],[l_3,m_3,n_3]|`=0
(c) The plane `x-2y+z=21` and the line `(x-1)/1=(y-2)/2=(z-1)/3` are parallel, which of these is/are correct?

Consider the following statements:

(a) Line joining (1,2,3), (4,3,2) is parallel to the line joining (5, 1, -11), (8,2,-8)

(b) Three concurrent lines with D.C.’s `(l_i, m_i,n_i)`, i=1,2,3 are coplanar if `|[l_1,m_1,n_1],[l_2,m_2,n_2],[l_3,m_3,n_3]|`=0

(c) The plane `x-2y+z=21` and the line `(x-1)/1=(y-2)/2=(z-1)/3` are parallel, which of these is/are correct?

A.

a and b

B.

b and c

C.

c and a

D.

a, b and c