BITSAT 2012 Paper

Section: Mathematics

Question : 124 of 150

Marks: +1, -0

If the line x cos α + y sin α = p represents the common chord of the circles x2+y2 = a2 and x2+y2+b2 (a > b), where A and B lie on the first circle and P and Q lie on the second circle, then AP is equal to

√a2+p2 + √b2+p2
√a2−p2 + √b2−p2
√a2−p2 - √b2−p2
√a2+p2 - √b2+p2

Validate

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