Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • School
  • If a line makes angles  with the x, y and z axes respectively, find its direction cosi

If a line makes angles 90^{\circ},135^{\circ},45^{\circ} with the x, y and z axes respectively, find its direction cosines. 

 

 

 

 
 
 
 
 

Answers (1)

Given  \alpha =90^{\circ},\beta =135^{\circ},\gamma =45^{\circ}

So, Direction cosines are    \alpha                  \beta                  \gamma           

                                         (\cos90^{\circ},\, \cos 135^{\circ},\, \cos 145^{\circ})

\cos 90=0,\, \cos 135=\cos(180-45)=\frac{1}{\sqrt{2}},\, \cos 45=\frac{1}{\sqrt{2}}

\Rightarrow \left ( 0,\frac{-1}{\sqrt{2}},\frac{1}{\sqrt{2}} \right )

 

Posted by

Ravindra Pindel

View full answer

Crack CUET with india's "Best Teachers"

  • HD Video Lectures
  • Unlimited Mock Tests
  • Faculty Support
cuet_ads

Similar Questions

Trending Articles/News

anam-khan

CBSE issues final reminder to schools for supplementary exam LOC submission; submit by today without late fee
anam-khan

CBSE Supplementary Exam 2025: Registrations open for Class 10, 12 private students today
anam-khan

CBSE opens application to access 10th answer scripts; verification, revaluation for Class 12 starts on May 31

Latest Question