Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 10th
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# Check whether the given lines are parallel or perpendicular 5x + 23y + 14 = 0 and 23x – 5x + 9 = 0 - Mathematics

Sum

Check whether the given lines are parallel or perpendicular

5x + 23y + 14 = 0 and 23x – 5x + 9 = 0

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#### Solution

5x + 23y + 14 = 0 and 23x – 5x + 9 = 0

Slope of the line (m1) = (-5)/(23)

Slope of the line (m2) = (-23)/(-5) = 23/5

m1 × m2 = (-5)/(23) xx (23)/(5) = – 1

∴ The two lines are perpendicular

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#### APPEARS IN

Samacheer Kalvi Mathematics Class 10 SSLC Tamil Nadu State Board
Chapter 5 Coordinate Geometry
Exercise 5.4 | Q 3. (ii) | Page 235
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