
Find value of m for which the lines mx+(2m+3)y+m+6=0 & (2m+1)x+(m-1)y+m-9=0 intersect at a......
Class XI Straight Lines Find value of m for which the lines mx+(2m+3)y+m+6=0 & (2m+1)x+(m-1)y+m-9=0 intersect at a point on y-axis. Previous Videos related to this chapter are mentioned in the below link: 10.3 Q4: • Find the distance of the point (–1, 1) fro... 10.3 Q5: • Find the points on the x-axis, whose dista... 10.3 Q10: • The line through the points (𝒉, 3) and (4,... 10.3 Q14: • Find the coordinates of the foot of perpen... 10.3 Q16: • If p and q are the lengths of perpendicula... 10.3 Q18: • If p is the length of perpendicular from t... Example 24: • A line is such that its segment between th... Misc. Q10: • If three lines whose equations are 𝒚=𝒎_𝟏 𝒙... Misc. Q13: • Show that the equation of the line passing... Misc. Q15: • Find the distance of the line 𝟒𝒙+𝟕𝒚+𝟓=𝟎 fr... Misc. Q18: • Find the image of the point (3, 8) with re... Misc. Q23: • Prove that the product of the lengths of t... Misc. Q24: • A person standing at the junction (crossin... 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Q: Find the equation of the line through (0,2) making an angle (2π/3) with positive x-axis. Also find the equation of line which is parallel to crossing the y-axis at a distance of 2 units below the origin.: • Find the equation of the line through (0,2... Q: A rectangle has 2 opposite vertices at the points (1,2) & (5,5). If the other vertices lie on the line x=3. Find the equation of the sides of the rectangles.: • A rectangle has 2 opposite vertices at the... CONCEPT: VARIOUS FORMS OF EQUATION OF A LINE: • CONCEPT: VARIOUS FORMS OF EQUATION OF A LINE The vertices of Δ PQR are P (2, 1), Q (–2, 3) and R (4, 5). Find equation of the median through the vertex R. • The vertices of Δ PQR are P (2, 1), Q (–2,... A line perpendicular to the line segment joining the points (1, 0) and (2, 3) divides it in the ratio 1: n. Find the equation of the line. • A line perpendicular to the line segment j... 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Find equation of line which passes through P(1, -7) & meets the axes at A & B respecting so that 4AP-3BP=0. • Find equation of line which passes through... CONDITION OF CONCURRENCY OF THREE LINES: • CONDITION OF CONCURRENCY OF THREE LINES Q: If a, b, c are in A.P., prove that the straight lines: l_1: ax+2y+1=0 l_2: bx+3y+1=0 l_3: cx+4y+1=0 are concurrent.: • If a, b, c are in A.P., prove that the str... Q: Find the image of the point (-8, 12) with respect to the line mirror 4x+7y+13=0. • Find the image of the point (-8, 12) with ... Q: The equations of two sides of a ∆ are 3x-2y+6=0 & 4x+5y-20=0 & the orthocenter is (1,1). Find the equation of 3rd side of ∆. • The equations of two sides of a ∆ are 3x-2... Q: Find the area of ∆ formed by lines y=x, y=2x, y=3x+4. • Find the area of ∆ formed by lines y=x, y=... #CBSE #ICSE #Boards #8th #9th #10th #Foundation #Competition #IIT #JEE #Advanced #Mains #NTSE #Olympiads #Exams #Examination #Achiever #Topper #Zenith #ZenithInstituteOfMathematics #InderSir #Ludhiana #ModelGram #BestMathsCoaching #BestTutorials #BestTuition #BestInLudhiana #MathTricks #VIII #IX #X #XI #XII #Important #Excellent #Question #StraighhtLines #SlopeOfALine #ConditionsOfParallelism #ConditionsOfPerpendicularity #AngleBetween2Lines #Collinearity #Coplanar