JEE Advanced 2026 Mathematics question
Not in JEE Main syllabus
Match each entry in List-I to the correct entry in List-II and choose the correct option. List-I (P) The number of elements in the set (Q) The number of elements in the set (R) The number of elements in the set (S) The number of elements in the set List-II (1) is 1 (2) is 2 (3) is 3 (4) is 4 (5) is 5
Answer: (B)
Solution
(P) With s = sin²x: , so sin x = 0 (x = −π, 0, π) or sin²x = 1 (x = ±π/2): 5 → (5). (Q) With c = cos²x: , so cos x = 0 (x = ±π/2) or cos²x = 1 (x = 0): 3 → (3). (R) $ - (1 -
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