TS EAMCET · Maths · Straight Lines
The angle by which the coordinate axes are to be rotated about the origin so that the transformed equation of \(\sqrt{3} x^2+(\sqrt{3}-1) x y-y^2=0\) would be free from xy term is
- A \(45 ^\circ\)
- B \(22.5 ^\circ\)
- C \(15 ^\circ\)
- D \(7.5 ^\circ\)
Answer & Solution
Correct Answer
(D) \(7.5 ^\circ\)
Step-by-step Solution
Detailed explanation
\(\sqrt{3} x^2+(\sqrt{3}-1) x y-y^2=0\) If the axis is rotated by angle \(\theta\) and new coordinate of \((x, y)\) is \(\left(x_1, y_1\right)\) then…
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