If Ax+By=5 is a normal at a point P on the ellipse x29+y24=1 whose ecc – InterviewSolution

1.	If Ax+By=5 is a normal at a point P on the ellipse x29+y24=1 whose eccentric angle is π4, then the value of (A+B)2 is
Answer» If $A x + B y = 5$ is a normal at a point $P$ on the ellipse $\frac{x^{2}}{9} + \frac{y^{2}}{4} = 1$ whose eccentric angle is $\frac{π}{4}$ , then the value of $(A + B)^{2}$ is

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