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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) `2theta_1=theta_2`
(D) None of these

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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