1.What is the acute angle between the lines Ax+By=A+BAx + By = A + BAx+By=A+B and A(x−y)+B(x+y)=2BA(x - y) + B(x + y) = 2BA(x−y)+B(x+y)=2B?a.45∘45^\circ45∘b.tan−1(AA2+B2)\tan^{-1}\left(\frac{A}{\sqrt{A^2 + B^2}}\right)tan−1(A2+B2A)c.30∘30^\circ30∘d.60∘60^\circ60∘Login to continueOnly logged in users canattempt or see the solution.
