Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
AP EAMCET201920 Apr 2019Morning ShiftMathematicsStraight LinesActual

(A(2,3,5), B( , 3,3) ) and (C(7,5, ) ) are the vertices of a triangle. If the median through (A ) is equally inclined with the co-ordinate axes, then ( ⁻¹ ( )= )

Options

  1. A( ⁻¹ ( -1 9 ) )
  2. B( 2 )
  3. C( 3 )
  4. D( ⁻¹ ( 2 5 ) )

Correct answer

A. ( ⁻¹ ( -1 9 ) )

Step-by-step solution

Given, points (A(2,3,5), B( , 3,3) ) and (C(7,5, ) ) ( ) Mid-point of (B C ) is (D ( +7 2 , 4, 3+ 2 ) ) ( ) Direction ratios of line joining points (A(2,3,5) ) and (D ( +7 2 , 4, 3+ 2 ) ) is ( ( +3 2 , 1, -7 2 ) ). ( ) The line segment (A D ) is equally inclined with the co-ordinate axes, so ( aligned & +3 2 =1= -7 2 & =-1 and =9 & ⁻¹ ( )= ⁻¹ (- 1 9 ) aligned ) Hence, option (1) is correct.

Practice Straight Lines on Quantrex Academy →

More from Straight Lines

The locus of the third vertex of a right-angled triangle, the ends of whose hypotenuse are (1,2) and (4,5) , is 2025The coordinate axes are rotated about the origin in the counter clockwise direction through an angle 60^ . If a and b are the intercepts made on the new axes by a straight line who 2025The image of a point (2,-1) with respect to the line x-y+1=0 is 2025If a straight line is at a distance of 10 units from the origin and the perpendicular drawn from the origin to it makes an angle 4 with the negative X -axis in the negative directi 2025A straight line passing through the origin O meets the parallel lines 4 x+2 y=9 and 2 x + y +6=0 at the points P and Q respectively. Then the point O divides the line segment PQ in 2025A (4,3), B (2,5) are two points. If P is a variable point on the same side as that of the origin with respect to the line AB and is at most at a distance of 5 units from the midpoi 2025By shifting the origin to the point (2,3) through translation of axes, if the equation of the curve x^2+3 x y-2 y^2+4 x-y-20=0 is transformed to the form Ax ^2+ Bxy + Cy ^2+ Dx + E 2025The points (2,3) and (-4,- 4 3 ) lie on the opposite sides of the line L 5 x -6 y + k =0 and k is an integer. If the points (1,2) and (4,5) lie on the same side of the line L =0 , 2025 Full Straight Lines list All AP EAMCET PYQs