wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

The angle between the lines joining the points (1,0,3),(2,1,2) and (1,1,1),(3,2,0) is

A
cos129
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
90
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
0
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
cos1229
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D cos1229
Let A(1,0,3)B(2,1,2)C(1,1,1) and D(3,2,0)
As we know that
cosθ = dot product of direction cosine of AB and CD
direction cosine of AB= (127,127,527)
Direction cosine of CD = 26,16,16)
cosθ = 21527×6
cosθ = 427×6
θ = cos1229

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Angle between Two Line Segments
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon