The value of lim<sub>y→0</sub> {(x + y) × sec (x + y) – x × sec x}/y is

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Q. The value of lim_y→0 {(x + y) × sec (x + y) – x × sec x}/y is

(A) x × tan x × sec x
(B) x × tan x × sec x + x × sec x
(C) tan x × sec x + sec x
(D) x × tan x × sec x + sec x

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✅ Correct Answer: (D) x × tan x × sec x + sec x

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