If 3x – 4y + 7 = 0 and ax + 2y + 1 = 0 are perpendicular then ‘a’ equal to.
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Answer:
a=8/3
Explanation:
slope of 1st line is -a/b, hence it is -3/-4
=3/4
slope of 2nd line=-a/2
As the lines are perpendicular m1×m2=-1
3/4×-a/2=-1
a=8/3
I hope it helps you
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