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NCERT Maths Solutions Class 11th Chapter 10 Straight Lines Exercise Miscellaneous Questions
Get Free NCERT Solutions for Class 11 Maths Chapter 10 Straight Lines Miscellaneous Questions. Class 11 math NCERT Solutions are extremely helpful while doing homework. Class 11 Maths Extra Questions and NCERT Solutions were prepared by experienced Manabadi Teachers. Detailed answers of all the queions in Chapter 10 Maths Straight Lines Class 11 Extra Questions Provided in NCERT Textbook.
NCERT Solution for Class 11 Maths Chapter 10 Straight Lines Exercise Miscellaneous Exercise
Miscellaneous Exercise Class 11 Maths Question-1
Find the values for which line (k – 3 )x –(4 – k 2) y + k 2 - 7k + 6 = 0 is
(a)Parallel to the x-axis,
(b)Parallel to the y-axis,
(c)Passing through the origin.
Ans:The given equation of line is
(k - 3) x – (4 – k 2) y + – k 2 -7k + 6 = 0…(1)
(a) If the given line is parallel to the x-axis, then
Slope of the given line = slope of the x-axis
The given line can be written as
(4 – k 2) y = (k – 3 x + ) x + k 2 - 7k + 6 = 0
Miscellaneous Exercise Class 11 Maths Question-3
Find the equations of the lines, which cut –off intercepts on the axis whose sum and product are 1 and -6, respectively.
Ans:Let the intercepts cut by the given lines on the axes be a and b.
It is given that
A + b = 1…(1)
ab =-6…(2)
On solving equations(1) and (2), we obtain
a = 3 and b =-2 or a =-2 and b =3
It is known that the equation of the line whose intercepts on the axes are a and b is