Which of the following are orthogonal pairs? a. 3i+2j b. i+j c. 2i-3j d. -7i+j ???	Choose the correct choice from the following options:
A) a,b	B) a,c	C) b,c	D) a,d	E) b,d
a. 3i+2j   and   c. 2i-3j   are orthogonal pair.   as the dot product of two vectors is zero;so they are orthogonal.   ANSWER:a,c
<result>B</result>
Which of the following are orthogonal pairs? a. 3i+2j b. i+j c. 2i-3j d. -7i+j ???