Find the Equation of the line AB when it meets x-axis at (-3,0) with slope = -2
Sol :
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Saturday, 27 October 2012
Friday, 26 October 2012
Find the Equation of the line which is passing through the point (0,0) with slope m.
02:25:00
CBSE, NCERT solved answers, solved answers of mathematics of 11th class, Straight Lines
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Sol :
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Tuesday, 23 October 2012
Find the Equation of the line which is passing through (-4,3) with slope 1/2
Find the Equation of the line which is passing through (-4,3) with slope 1/2
Sol :
We know that Equation of line will be (y-y1)
= m(x-x1) when slope of line and a point is given.
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Write the equations for x and y-axis.
Write the equations for x and y-axis.
Sol :
Equation of x-axis is y = 0.
and
Equation of y-axis is x = 0...
Sunday, 21 October 2012
If three points (h.0),(a,b) and (0,k) lie on line, show that a/h+b/k=1
06:30:00
Geeks Networks, NCERT solved answers, solved answers of mathematics of 11th class
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Q.No. 13 of Exercise 10.1 of Class 11th
If three points (h.0),(a,b) and (0,k) lie on line, show that a/h+b/k=1.
Sol :
Let,
The given points are A(h,0), B(a,b), C(0,k)
These points lie on the same line
Therefore,
Slope of AB = Slope of BC.
Here,
Slope of AB = b-0/a-h = b/a-h
Slope of BC = k-b/0-a = k-b/-a
Now
b/a-h = k-b/-a
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Thursday, 18 October 2012
The Slope of a line is double of the slope of another line. If tangent of the angle between them is 1/3, find the slopes of the line.
01:44:00
Geeks Networks, NCERT solved answers, solved answers of mathematics of 11th class, Straight Lines
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Q.No. 11 of Exercise 10.1 of Class 11th
The angle between x-axis and the line joining the points A(3,-1) and (4,-2).
Sol :
Let
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