1.

The line through the points ( h , 3) and (4, 1) intersects the line 7 x – 9 y – 19 = 0 . at right angle. Find the value of h .

Answer» The line through the points ( h , 3) and (4, 1) intersects the line 7 x – 9 y – 19 = 0 . at right angle. Find the value of h .


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