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If the angle between the two lines repre...

If the angle between the two lines represented by
`2x^(2)+5xy+3y^(2)+6x+7y+4=0` is `tan^(-1)(m)`,
then m is equal to

A

(a) `1/5`

B

(b) `1 `

C

(c) `7/5`

D

(d) `7`

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The correct Answer is:
A
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