Angle between Pair of Straight Lines
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Q. The minimum dis†an ce between the parabolas y^2 – 4x –8y + 40 = 0 and x^{2 }– 8x – 4y + 40 = 0 is
Q.
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Find the number of solutions for [x]={ x }. Where [x], { x } represents greatest integer and fractional part of x.
Q.
The angle between the pair of straight lines x2+4y2−7xy=0, is
tan−113
tan−13
tan−1√335
tan−15√33
Q. A rod of length 12 cm moves with it ends always touching the coordinate axes. Dertermine the equation of the locus of a point P on the rod which is 3 cm from the end in contact with the x-axis
Q. In . Prove that .
Q. Find the angle between the x-axis and the line joining the points (3, −1) and (4, −2).
Q.
If the acute angles between the pairs of lines 3x2−7xy+4y2=0 and 6x2−5xy+y2=0 be θ1 and θ2 respectively, then
None of these