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Exercise Solutions 10.2class 11 Maths NCERT Solutions Chapter 10 Straight Lines

Class 11 Maths NCERT Solutions Chapter 10 Straight Lines is developed and witten by our expert teachers. Students can study our solutions of Chapter 10 Straight Lines class 11 Maths, Question 1-3 (1)Write the equations for the x-and y-axes. (2) Passing through the point (– 4, 3) with slope 1/2 (3) Passing through (0, 0) with slope m., 4. Passing through (2 root(3),2) and inclined with the x-axis at an angle of 75. , 5. Intersecting the x-axis at a distance of 3 units to the left of origin with slope –2., 6. Intersecting the y-axis at a distance of 2 units above the origin and making an angle of 30 with positive direction of the x-axis. , 7. Find equation of line passing Passing through the points (–1, 1) and (2, – 4). , 8. Find the equation of line whose Perpendicular distance from the origin is 5 units and the angle made by the perpendicular with the positive x-axis is 30. , 9. The vertices of ∆ PQR are P (2, 1), Q (–2, 3) and R (4, 5). Find equation of the median through the vertex R. , 10. Find the equation of the line passing through (–3, 5) and perpendicular to the line through the points (2, 5) and (–3, 6). , 11. 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. , 12. Find the equation of a line that cuts off equal intercepts on the coordinate axes and passes through the point (2, 3). , 13. Find equation of the line passing through the point (2,

NCERT Solutions Class 11 Maths
Chapter 10 Straight Lines
Exercise 10.2 Answers

=Question 1-3 (1)Write the equations for the x-and y-axes. (2) Passing through the point (– 4, 3) with slope 1/2 (3) Passing through (0, 0) with slope m.

Question 1-3  (1)Write the equations

=4. Passing through (2 root(3),2) and inclined with the x-axis at an angle of 75.

4. Passing through (2 root(3),2) and

=5. Intersecting the x-axis at a distance of 3 units to the left of origin with slope –2.

5. Intersecting the x-axis at a

=6. Intersecting the y-axis at a distance of 2 units above the origin and making an angle of 30 with positive direction of the x-axis.

6. Intersecting the y-axis at a

=7. Find equation of line passing Passing through the points (–1, 1) and (2, – 4).

7. Find equation of line passing

=8. Find the equation of line whose Perpendicular distance from the origin is 5 units and the angle made by the perpendicular with the positive x-axis is 30.

8. Find the equation of line whose

=9. The vertices of ∆ PQR are P (2, 1), Q (–2, 3) and R (4, 5). Find equation of the median through the vertex R.

9. The vertices of ∆ PQR are P (2,

=10. Find the equation of the line passing through (–3, 5) and perpendicular to the line through the points (2, 5) and (–3, 6).

10. Find the equation of the line

=11. 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.

11. A line perpendicular to the line

=12. Find the equation of a line that cuts off equal intercepts on the coordinate axes and passes through the point (2, 3).

12. Find the equation of a line that

=13. Find equation of the line passing through the point (2, 2) and cutting off intercepts on the axes whose sum is 9.

13.  Find equation of the line passing

=14. Find equation of the line through the point (0, 2) making an angle 2π/3 with the positive x-axis. Also, find the equation of line parallel to it and crossing the y-axis at a distance of 2 units below the origin.

14.  Find equation of the line through

=15. The perpendicular from the origin to a line meets it at the point (–2, 9), find the equation of the line.

15. The perpendicular from the origin

=16. The length L (in centimetrs) of a copper rod is a linear function of its Celsius temperature C. In an experiment, if L = 124.942 when C = 20 and L= 125.134 when C = 110, express L in terms of C.

16. The length L (in centimetrs) of a

=17. The owner of a milk store finds that, he can sell 980 litres of milk each week at Rs 14/litre and 1220 litres of milk each week at Rs 16/litre. Assuming a linear relationship between selling price and demand, how many litres could he sell weekly at Rs 17/litre?

17. The owner of a milk store finds

=18. P (a, b) is the mid-point of a line segment between axes. Show that equation of the line is x/a + y/b = 2

18. P (a, b) is the mid-point of a line

=19. Point R (h, k) divides a line segment between the axes in the ratio 1: 2. Find equation of the line.

19. Point R (h, k) divides a line

=20. By using the concept of equation of a line, prove that the three points (3, 0),(– 2, – 2) and (8, 2) are collinear.

20. By using the concept of equation of

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