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22Jai Baba Ki ISC Mathematics – Class XII by Gupta–Bansal
22. Let (x, y) be such that
π
−1
−1
−1
sin (ax) + cos (y) + cos (bxy) = .
2
List-I List-II
2
2
(A) If a = 1 and b = 0, then (x, y) (p) lies on the circle x + y = 1
2
2
(B) If a = 1 and b = 1, then (x, y) (q) lies on (x − 1)(y − 1) = 0
(C) If a = 1 and b = 2, then (x, y) (r) lies on y = x
2
2
(D) If a = 2 and b = 2, then (x, y) (s) lies on (4x − 1)(y − 1) = 0
(p) (q) (r) (s)
(A) p q r s
(B) p q r s
(C) p q r s
(D) p q r s
[JEE 2007]
