Saved Bookmarks
| 1. |
If the line passes through the points P(6, - 1, 2), Q (8, -7, 2A) and R(5, 2, 4) then value of `lamda` is ..... .A. `-3`B. 0C. `-1`D. 2 |
|
Answer» Correct Answer - C Equation of the line passes through the points P(6,-1,2) and Q(8,-7,2`lamda`) `!(x-6)/(8-6)=(y+1)/(-7+1)=(z-2)/(2lamda-2)` `!(x-6)/2=(y+1)/(-6)=(z-2)/(2lamda-2)` …(i) Line (i) passes through point R(5,2,4) `therefore(5-6)/2=(2+1)/(-6)=(4-2)/(2pi-2)` `!-1/2=3/(-6)=2/(2lamda-2)` `!2/(2lamda-2)=-1/2!1/(lamda-1)=-1/2` `!lamda-1=-2!lamda=-1` |
|