1
49.
dx =
tan' x + sec x
1)
1
2
2)
tan -'(72 tan x) – tan-(tan x)+c
Ta tan-'(tan x)- tan"(tan x) +
3) V2 tan-'(V2 tan x) – tan-"(tan x)+c
4) V2 tan-' (tan x) – tan-! (V2 tan x)+c
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Answer:
8उफ6फल फ़7द54ट ड्यूटी द80उफान गु9फ़7द4वो।क्नॉयवलहकबक कवन ओक्स7फ़6से रात तरह त7धफ़ीड8त0त8फिफ्जव
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