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Q.

[[1]] is  the equation of the line AB in the following figure, given   OP=3/2.


https://www.vedantu.com/question-sets/80ba8abd-1811-4528-8b1a-2a95360d7b084555545865959303010.png

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Detailed Solution

https://www.vedantu.com/question-sets/e02a4e79-46fb-46a0-9ee7-a78fb241a10f984959542949603058.png
We have ∠RPB=∠OPQ=30 because the both angles are vertical opposite to each other. We have the right angle ∠POQ=90. We use the property that sum of internal angles in a triangle is 180  to find  ∠PQO=θ. So we have
POQ+PQO+OPQ=180°
⇒90°+θ+30°=180°
⇒θ=60°
tanθ=tan(60°)=3tanθ=tan(60°)=3
We know the equation of the line in slope point form with slope mm and a point on the line (x1,y1) as
y-y1=m(x-x1)
The slope of the line AB is m=3 and the point P(0, 32) lies on it. So the equation of the line AB is
y-32=3(x-0)
2y-3=23x
23x+2y-3=0
 
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