Q)Direction cosines of 2 lines are connected by the relation:-al+bm+cn=0 & fmn+gnl+hlm=0.Find the condition that these 2 lines will be (a)perpendicular (b)parellel
                   

2 years ago

Share

Post Your Answer

More Questions On Analytical Geometry

Ask Experts

Have any Question? Ask Experts
Post Question
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!!
Click Here for details
The age of a man is four times that of his son. Five years ago, the man was nine times as old as his son at that time. The present age of the man is
 
 
Let the age of son be x. Hence, theage of father = 4x Age of son 5 years ago = x - 5 Age of father 5 years ago = 4x - 5 Its given that, 5 years ago the man was 9 times old as his son. ? 4x -...
  img
bharat bajaj 5 months ago
 
Let the age of son be x. Hence, theage of father = 4x Age of son 5 years ago = x - 5 Age of father 5 years ago = 4x - 5 Its given that, 5 years ago the man was 9 times old as his son. ? 4x -...
  img
bharat bajaj 5 months ago
Let ABCD is a square whose two vertices A and D lie on positive x-axis and positive y-axis respectively.If the co-ordinate of C is(15,19),then the co-ordinate of B are: 1....
 
 
Ans: (19, 4) Sol: Let the coordinates of A, B & D be: Equate the sides of the square: Equating diagonals of square: After solving all the equations, you would find Thanks & Regards...
  img
Jitender Singh 4 months ago
two lines 5x-12 y=10 and 5x-12y=40 touches a circle C1 of diameter 6 if the centre of C1 lies in the first quadrant , find the equation of the circle C2 which is concentric with C1 and cuts...
 
 
in your question no circle with the given diameter can touch both the given lines Thanks and Regards, M.MURALIKRISHNA askIITians faculty
  img
MuraliKrishna Medavaram 8 months ago
 
Distance between 2 parallel lines (in this case the given lines) is given by : (c1-c2) / (a^2+b^2)^1/2 [where c1 and c2 are constants]. In this case the distance between the parallel lines...
 
Ansh Arora 8 months ago
The equation [ x – 1][x + 1] = a^2 – 2a – 3 can have real solutions for x if a belongs to
 
 
Hello Student, Thanks & Regards Arun Kumar Btech, IIT Delhi Askiitians Faculty
  img
Arun Kumar 3 months ago
The area of the triangle formed by the intersection of a line parallel to x-axis and passing through P (h, k) with the lines y = x and x + y = 2 is 4h^2. Find the locus of the point P.
 
 
Hello Student, Area of triangle=(1/2).AB.AC=4h^2 and AB= 2|k–1|=AC =>4h2 =(1/2).2.(k–1)^2 =>k-1 = ± 2h. =>locus is y = 2x + 1, y = – 2x + 1. Thanks &...
  img
Arun Kumar 3 months ago
please anyone help
 
 
Ans: Hello student, Please find answer to your question below [x] is the greatest integer that is less than or equal to x. [x] is 0 if x lies between 0 (included) and 1 (excluded) [x] is 1...
  img
Jitender Singh one month ago
View all Questions »