If the acute angle between the pairs of ...

If the acute angle between the pairs of lines `3x^2-7xy+4y^2=0` and
`6x^2-5xy+y^2=0` be `theta_1` and `theta_2` respectively, then

A

`theta_(1)=theta_(2)`

B

`theta_(1)=2theta_(2)`

C

`2 theta_(1)=theta_(2)`

D

`theta_(1)=1/2 theta_(2)^(2)`

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The correct Answer is:

A

NA

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