If the lines 2x+3ay-1=0 and 3x+4y+1=0 ar...

If the lines `2x+3ay-1=0 and 3x+4y+1=0` are matually perpendicular, then the value of a will be

A

`1//2`

B

2

C

`-1//2`

D

None of these

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The correct Answer is:

C

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