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Maths TNSB Mentoring
Class 10 Crash course
Coordinate geometry
Annual Revision VI
8.
TBQ - Verify the following
Question:
2
m.
Verify whether
the straight lines \(x - 3y + 3 = 0\) and \(9x + 3y + 8 = 0\) are perpendicular.
Answer
:
Slope of \(x - 3y + 3 = 0\) is
i
i
.
Slope of \(9x + 3y + 8 = 0\)) is
.
Since \(m_1 \times m_2\)
= -1
\(\neq -1\)
, then the given lines are
not perpendicular
perpendicular
.
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