Q21 of 45 Page 1

Find the equation of the line passing through the point (–1, 3, –2) and perpendicular to the lines and

Let a, b, c be the direction ratios of the line which is perpendicular to the lines,



⇒ a + 2b + 3c = 0 … (1)


⇒ -3a + 2b + 5c = 0 … (2)


Solving equation (1) and (2),





∴ Equation of the required line passing through (-1, 3, -2) having direction ratios 2, -7, 4 is .


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