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Question -

Find the equation of a line passing through (3, -2) and perpendicular to the line x тАУ 3y + 5 = 0.



Answer -

Given:

The equation isperpendicular to x тАУ 3y + 5 = 0 and passes through (3,-2)

The equation of theline perpendicular to x┬атИТ┬а3y + 5 = 0 is

3x + y +┬а╬╗┬а=0,

Where,┬а╬╗┬аisa constant.

It passes through(3,┬атИТ┬а2).

Substitute the valuesin above equation, we get

3 (3) + (-2) +╬╗┬а= 0

9 тАУ 2 +┬а╬╗┬а=0

╬╗┬а= тАУ 7

Now, substitute thevalue of ╬╗┬а=┬атИТ┬а7 in 3x + y +┬а╬╗┬а= 0, we get

3x + y тАУ 7 = 0

тИ┤ The required line is3x + y тАУ 7 = 0.

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