Find the equation of the st.line going t...

Find the equation of the st.line going through the point `(1,-2)` and perpendicular to `x-2y+3=0`.

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The correct Answer is:

`2x+y=0`

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(i) Find the equations of the straight line passing through the point (2,3,-1) and is perpendicular to the lines : ( x-2)/(2) = (y + 1)/(1) = (z - 3)/(-3) and (x - 3)/(1) = (y + 2)/(1) = (z - 1)/(1) . (ii) Find the equation of the line which intersects the lines : (x + 2)/(1) = (y - 3)/(2) = (z + 1)/(4) and (x - 1)/(2) = (y - 2)/(3) = (z - 3)/(4) Perpendicular and passes through the point (1,1,1) .

MODERN PUBLICATION-STRAIGHT LINES -Exercise 10(f)

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