Indefinite IntegrationHard

Question

The value of d x is equal to

Options

A.tan-1 (tan x + cot x) + C
B.- tan-1 (tan x + cot x) + C
C.tan-1 (tan x - cot x) + C
D.- tan-1 (tan x - cot x) + C

Solution







⇒  I =
= tan-1 + C
= tan-1 (tan x - cot x) + C.

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