Question

(5)
Given A= i + j+Ń and B=-i-j-k, then (A-B)
will make angle with A
(a) 0° (b) 180° (c) 90° (d) 60°
Component of the vector A = 2î + 3j along the vector
B= (i +j) is
Yes (6) 42 (c) 2 (d) None of these
Which of the following is a unit vector?
(a) i + j
(b) cose i - sine i
1 å​

Answer 1

Given A= i + j+Ń and B=-i-j-k, then (A-B)

will make angle with A

(a) 0° (b) 180° (c) 90° (d) 60°

Component of the vector A = 2î + 3j along the vector

B= (i +j) is

Yes (6) 42 (c) 2 (d) None of these

Which of the following is a unit vector?

(a) i + j

(b) cose i - sine i

1 å​