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Introduction to Analytical Geometry - Set 3
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NUST Entrance Test
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Mathematics
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Introduction to Analytical Geometry
Set 3
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Mashaal Masha
Oct 07, 2022
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Choose the correct options for the following questions.
The length of perpendicular from (a,b) to the line y=mx+c is:
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Difficulty: Easy
A:
$\frac{|am+b+c|}{\sqrt{a^{2}+b^{2}}}$
B:
$\frac{|ma-b+c|}{\sqrt{m^{2}+1}}$
C:
$\frac{|am+b+c|}{\sqrt{m^{2}-1}}$
D:
$\frac{|am-b+c|}{\sqrt{a^{2}+b^{2}}}$
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The length of perpendicular from (3,1) to the line 4x+3y+20=0 is:
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Difficulty: Easy
A:
7
B:
5
C:
11
D:
12
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