यदि (3a + 4b)/( 3c + 4d) = (3a - 4b)/( 3...

यदि `(3a + 4b)/( 3c + 4d) = (3a - 4b)/( 3c - 4d)` हो तो

A

`ab=cd`

B

`ad = bc`

C

`ac = bd`

D

`a =b = c ne d`

लिखित उत्तर

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The correct Answer is:

B

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