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प्रश्न
Find the slope of a line perpendicular to the foloowing line `(3"x")/4 -"y" = 5`
उत्तर
When two lines are perpendicular to each other the product of their slope is -1.
i.e m1 x m2 = -1
`(3"x")/4 -"y" = 5`
y = `3/4"x" - 5`
m1 = `3/4`
Slope of required line (m2) = `-1/"m"_1 = (-4)/3`
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