Q.
The angle of rotation of the axes so that the equation 3x−y+5=0 may be reduced to form y=constant is
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a
π3
b
π2
c
π6
d
π4
answer is A.
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Detailed Solution
3x−y+5=0;a=3,b=−1∴θ=tan−1−ab=tan−13=π3
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