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​ If the line x/a + y/b = 2 is tangent to the curve (x/a)^n + (y/b)^n = 2 at point (a, b) then find the value of n (1) Φ (2) singleton set

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If the line x/a + y/b = 2 is tangent to the curve (x/a)n + (y/b)n = 2 at point (a, b) then find the value of n

(1) Φ

(2) singleton set

(3) even

(4) n \(\in\) N

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Correct option is (4) n \(\in\) N

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