Advertisements
Advertisements
Question
The angle between the pair of straight lines x2 – 7xy + 4y2 = 0 is:
Options
`tan^-1 (1/3)`
`tan^-1 (1/2)`
`tan^-1 (sqrt33/5)`
`tan^-1 (5/sqrt33)`
Advertisements
Solution
`tan^-1 (sqrt33/5)`
APPEARS IN
RELATED QUESTIONS
Show that the equation 12x2 – 10xy + 2y2 + 14x – 5y + 2 = 0 represents a pair of straight lines and also find the separate equations of the straight lines.
Show that the pair of straight lines 4x2 + 12xy + 9y2 – 6x – 9y + 2 = 0 represents two parallel straight lines and also find the separate equations of the straight lines.
ax2 + 4xy + 2y2 = 0 represents a pair of parallel lines then ‘a’ is:
Show that 2x2 + 3xy − 2y2 + 3x + y + 1 = 0 represents a pair of perpendicular lines
Find the separate equation of the following pair of straight lines
3x2 + 2xy – y2 = 0
For what values of k does the equation 12x2 + 2kxy + 2y2 +11x – 5y + 2 = 0 represent two straight lines
Show that the equation 9x2 – 24xy + 16y2 – 12x + 16y – 12 = 0 represents a pair of parallel lines. Find the distance between them
Choose the correct alternative:
Equation of the straight line that forms an isosceles triangle with coordinate axes in the I-quadrant with perimeter `4 + 2sqrt(2)` is
Choose the correct alternative:
The length of ⊥ from the origin to the line `x/3 - y/4` = 1 is
The pair of lines represented by 3ax2 + 5xy + (a2 – 2)y2 = 0 are perpendicular to each other for ______.
