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प्रश्न
Choose the correct alternative:
`int secx/sqrt(cos2x) "d"x` is
विकल्प
`tan^-1 (sin x) + "c"`
`2sin^-1 (tan x) + "c"`
`tan^-1 (cos x) + "c"`
`sin^-1 (tan x) + "c"`
उत्तर
`sin^-1 (tan x) + "c"`
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