AP EAMCET Engineering 2018 Apr 24 Shift 1 Paper

Section: Mathematics

Question : 23 of 160

Marks: +1, -0

Let P (α , β) and Q (γ , δ) be two points that lie on the curve tan2 (x + y) + cos2 (x + y) + y2 + 2y = 0 in the XY-plane. If the distance between P and Q is d, then cos d =

0
(−1)n , n ∊ N
± π
± 2nπ , n ∊ N

Validate

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