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angle betweem the lines 2x=3y=4z and 7x=5y=-z

angle betweem the lines 2x=3y=4z and 7x=5y=-z

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2 Answers

SAGAR SINGH - IIT DELHI
879 Points
10 years ago

Dear student,


Use the following                      [Graphics:Images/index_gr_5.gif] . [Graphics:Images/index_gr_6.gif]  = | [Graphics:Images/index_gr_7.gif] | × | [Graphics:Images/index_gr_8.gif] |cosθ

Mir Noaman Ali IIT-Roorkee
57 Points
10 years ago

cos theta = L1L2+M1M2+N1N1 DIVIDED BY WHOLE ROOT OVER[ (LI^2+M1^2+N1^2)(L2^2+M2^2+N2^2) ]...WHERE L1,M1,N1 AND L2,M2,N2 ARE THE DIRECTION COSINES OF THE 2 GIVEN LINES ...PLEASE APPROVE MY ANSWER

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